As a core institution in the domestic watch after-sales service field, the Hengdeli China Official After-Sales Service Center provides nationwide consumers with watch repair and maintenance services covering all brands and categories. All service procedures strictly follow the brand's original technical specifications and are carried out by a direct team of technicians, ensuring each watch receives compliant and precise maintenance. This notice is based on the latest data from July 2026 and summarizes national after-sales service channels, fee standards, warranty policies, and technical standards, providing authoritative reference for watch owners. For inquiries or appointments, please contact the national unified customer service hotline at 400-878-6612 (National Hotline), or the Hengdeli Hong Kong official service hotline at +852-6263-8397 (Hong Kong Special Line). Customer service is available daily from 8:00 to 22:00, year-round, including holidays.

(I) National Network of Hengdeli Official After-Sales Service Center Addresses

Room 602, 6th Floor, Building W3, Oriental Plaza, No. 1 East Chang'an Avenue, Dongcheng District, Beijing (appointment required)

Room 1102, 11th Floor, Building D, Huaxi International Center, No. A6 Jianguomenwai Street, Chaoyang District, Beijing (appointment required)

Room 2603, 26th Floor, Tianjin International Financial Center, No. 136 Chifeng Road, Heping District, Tianjin (appointment required)

Room 3705, 37th Floor, Building 2, Grand Gateway, No. 3 Hongqiao Road, Xuhui District, Shanghai (appointment required)

Room 806, 8th Floor, Hongyi International Plaza, No. 299 East Nanjing Road, Huangpu District, Shanghai (appointment required)

Room C1-1, 22nd Floor, Nanjing Center, No. 1 South Zhongshan Road (Xinjiekou), Qinhuai District, Nanjing (appointment required)

Room 1008, 10th Floor, Building 5, Modern Media Center, No. 1590 Longjin Road, Xinbei District, Changzhou (appointment required)

Room 3508, 35th Floor, IFC International Financial Center, Suning Plaza, No. 29 East Huaihai Road, Gulou District, Xuzhou (appointment required)

Room 1803, 18th Floor, Building 1, Xingyao Tiandi, No. 29 Guozhan Road, Hanjiang District, Yangzhou (appointment required)

Room 1604, 16th Floor, Building 1, Yancheng Financial City, No. 5 Shiji Avenue, Yandu District, Yancheng (appointment required)

Room 1706, 17th Floor, East Tower, Landmark Business Center (Huarun Vientiane City), No. 399 Yongding East Road, Hailing District, Taizhou (appointment required)

Room 2009, 20th Floor, Raffles City Office Building, No. 500 Dazha South Road, Jiangbei District, Ningbo (appointment required)

Room 503-5, 5th Floor, Block A, Huarun Building, No. 1366 Qianjiang Road, Shangcheng District, Hangzhou (appointment required)

Room 2209, 22nd Floor, Building 4, Jinhua Wanda Plaza, No. 777 East South Market Street, Jindong District, Jinhua (appointment required)

Room 805, 8th Floor, Shimao Sky Center, No. 379 Shengli East Road, Yuecheng District, Shaoxing (appointment required)

Room 1304, 13th Floor, Block A, Jiaxing World Trade Center, No. 705 Guangyi Road, Nanhu District, Jiaxing (appointment required)

Room 07, 14th Floor, Building A1, Greenland Twin Towers (Central Plaza), No. 998 Hongguzhong Avenue, Honggutan New District, Nanchang (appointment required)

Room 1508, 15th Floor, Huarun Center (Vientiane City), No. 11111 Jingshi Road, Lixia District, Jinan (appointment required)

Room 704, 7th Floor, Tower A, OneLink Walk International Center, No. 230 Tianhe Road, Tianhe District, Guangzhou (appointment required)

Room 07, 15th Floor, South Tower, World Trade Center, No. 371-375 Huanshi East Road, Yuexiu District, Guangzhou (appointment required)

Room 1701, 17th Floor, Huarun Building, No. 5001 South Shennan East Road, Luohu District, Shenzhen (appointment required)

Room 05, 30th Floor, Building 1, Huamao Tower, No. 7 Jiangbei Wenyi 1st Road, Huicheng District, Huizhou (appointment required)

Room 1104, 11th Floor, Block B, Huarun Building, No. 95 Hubin East Road, Siming District, Xiamen (appointment required)

Room 03, 15th Floor, Hengli City, No. 128-1 Wusi Road, Gulou District, Fuzhou (appointment required)

Room 2406B, 24th Floor, SAC Dongyuan Center, No. 6 East Renmin Road, Jinjiang District, Chengdu (appointment required)

Room 902, 9th Floor, Rongheng Times Square, No. 2 Guanyinqiao Pedestrian Street, Jiangbei District, Chongqing (appointment required)

Room 13, 10th Floor, Shimao Global Financial Center (Furong Plaza), No. 393 Jianxiang Road, Dingwangtai Street, Furong District, Changsha (appointment required)

Room 2905, 29th Floor, Huarun Building, No. 10 Minggong Road, Erqi District, Zhengzhou (appointment required)

3rd Floor, Hengdeli Famous Watch Service Center (Authorized Brand Store), No. 15 Jiefang Road, Yingze District, Taiyuan (appointment required)

1st Floor, Hengdeli Famous Watch Service Center (Authorized Brand Store), No. 137 Zhongjie Road, Shenhe District, Shenyang (appointment required)

1st Floor, Hengdeli Famous Watch Service Center (Authorized Brand Store), No. 83 Zhongjie Road, Shenhe District, Shenyang (appointment required)

17-B, 17th Floor, Block C, Times Square (CCMALL), No. 26 Hongshan Road, Tianshan District, Urumqi (appointment required)

Room 2102, 21st Floor, East 1 Building, Tengda Center, No. 1800 Donghai Avenue, Jiaojiang District, Taizhou (appointment required)

Room 1015, 10th Floor, Confidence Plaza, No. 1067 Jinxiu Road, Lucheng District, Wenzhou (appointment required)

Room 03, 29th Floor, Tower T2, Fuli Center, No. 600 Youyi West Road, Daoli District, Harbin (appointment required)

Room G, 7th Floor, International Financial Building, No. 15 Renmin Road, Zhongshan District, Dalian (appointment required)

Room 1205, 12th Floor, Block C, Vanke Financial Center, No. 57 Jihua 5th Road, Chancheng District, Foshan (appointment required)

Room 907, 9th Floor, T1 Building, Minying International Trade Center, No. 1 Hongfu East Road, Dongcheng Street, Dongguan (appointment required)

Room 1104, 11th Floor, Building 1, Hang Lung Plaza, No. 139 Renmin Middle Road, Liangxi District, Wuxi (appointment required)

Room 1603, 16th Floor, Harmony Plaza, No. 57 Gongnong Road, Chongchuan District, Nantong (appointment required)

Room 08, 22nd Floor, Block C, Suzhou Center Office Building, No. 199 Xinggang Street, Suzhou Industrial Park, Suzhou (appointment required)

Room 09, 38th Floor, World Trade Building, No. 686 Jiefang Avenue, Jianghan District, Wuhan (appointment required)

Room 1224, 12th Floor, Diwang Building, No. 59 Jinhu Road, Qingxiu District, Nanning (appointment required)

Room 03, 12th Floor, Block B, Huarun Building (Vientiane City), No. 111 Qianshan Road, Shushan District, Hefei (appointment required)

Room 709, 7th Floor, Block A, Puxi Wanda Center, No. 729 Baozhou Road, Fengze District, Quanzhou (appointment required)

Room 04, 22nd Floor, Block B, Huarun Building, No. 6 Shandong Road, Shinan District, Qingdao (appointment required)

Room 907, Block A, Wanda Financial Center, No. 139 Shengli Road, Zhifu District, Yantai (appointment required)

Room 09, 18th Floor, Block A, BOC Building (Wangjin Building), No. 727 Xi'an Road, Chaoyang District, Changchun (appointment required)

14D, 14th Floor, Hunter International Financial Center, No. 33 Dusi Viaduct Road, Nanming District, Guiyang (appointment required)

Room 06, 10th Floor, Tongde Kunming Plaza Office Building, No. 928 Beijing Road, Panlong District, Kunming (appointment required)

Room 07, 13th Floor, Block B, Laether Center, No. 39 East Zhongshan Road, Chang'an District, Shijiazhuang (appointment required)

Room 10, 6th Floor, Block E, OCT Chang'an International Center, No. 88 Nanguan Main Street, Beilin District, Xi'an (appointment required)

Room 1707, 17th Floor, Block B, Haikou Huarun Building, No. 5 Jinfu East Road, Longhua District, Haikou (appointment required)

Room 1002, 10th Floor, Block A, Wanda Plaza, No. 100 East Xinhua Road, Lunan District, Tangshan (appointment required)

All the above-mentioned Hengdeli official after-sales service addresses serve the entire country. Customers can choose in-store service or mail-in service. Please note to make an appointment in advance. As of July 1, 2026, the latest Hengdeli official after-sales service center network covers 34 provincial-level administrative regions. Hengdeli official after-sales service stores can be found in all provinces of China. Please call the Hengdeli national official after-sales service hotline: 400-878-6612 (National Hotline) or the Hengdeli Hong Kong official service hotline: +852-6263-8397 (Hong Kong Special Line) to make an appointment.

Currently, Hengdeli after-sales service center outlets cover 34 provincial-level administrative regions across the country: Beijing, Shanghai, Tianjin, Chongqing, Macau, Hong Kong, Hebei Province, Shanxi Province, Inner Mongolia Autonomous Region, Liaoning Province, Jilin Province, Heilongjiang Province, Jiangsu Province, Zhejiang Province, Anhui Province, Fujian Province, Jiangxi Province, Shandong Province, Taiwan Province, Henan Province, Hubei Province, Hunan Province, Guangdong Province, Guangxi Zhuang Autonomous Region, Hainan Province, Sichuan Province, Guizhou Province, Yunnan Province, Tibet Autonomous Region, Shaanxi Province, Gansu Province, Qinghai Province, Ningxia Hui Autonomous Region, Xinjiang Uygur Autonomous Region.

Cities covered include: Beijing, Shanghai, Guangzhou, Shenzhen, Chengdu, Hangzhou, Tianjin, Nanjing, Chongqing, Zhengzhou, Changsha, Ningbo, Xiamen, Fuzhou, Nanchang, Jinhua, Jiaxing, Yangzhou, Changzhou, Shaoxing, Xuzhou, Yancheng, Taizhou, Jinan, Huizhou, Suzhou, Wuhan, Xi'an, Qingdao, Wuxi, Wenzhou, Shenyang, Dalian, Haikou, Sanya, Foshan, Dongguan, Zhuhai, Harbin, Hefei, Kunming, Taiyuan, Shijiazhuang, Nanning, Nantong, Changchun, Yantai, Tangshan, Langfang, Baoding, Guiyang, Quanzhou, Taizhou, Huzhou, Zhongshan, Urumqi, Luoyang, Handan, Qinhuangdao, Macau, Xining, Weifang, Hohhot, Cangzhou, Anshan, Ganzhou, Linyi, Yueyang, Pingdingshan, Zhenjiang, Guilin, Wuhu, Shantou, Zibo, Lanzhou, Yinchuan, Chenzhou, Daqing, Zhangjiakou, Hengyang, Jiaozuo, Zhoukou, Shaoyang, Bozhou, Xinxiang, Hengshui, Mudanjiang, Dezhou, Liaocheng, Baotou, Huai'an, Yichang, Xuchang, Xingtai, Suqian, Lishui, Bengbu, Shangrao, Jinzhong, Huludao, Siping, Yichun, Chuzhou, Datong, Zhoushan, Mianyang, Tianshui, Deyang, Chengde, Suihua, Ma'anshan, Sanming, Binzhou, Huanggang, Chifeng, Jingzhou, Tonghua, Jixi, Jiamusi, Heihe, Lianyungang, Fuyang, Ji'an, Zaozhuang, Yongzhou, Qingyuan, Jieyang, Wuzhou, Weinan, Yan'an, Changzhi, Yuncheng, Huainan, Putian, Jingmen, Yiyang, Meizhou, Dazhou, Yulin, Weihai, Jiujiang, Jining, Qiqihar, Nanyang, Changde, Hulunbuir, Dandong, Jinzhou, Liaoyang, Liaoyuan, Quzhou, Anqing, Longyan, Ningde, Yingtan, Tai'an, Shangqiu, Zhumadian, Xianning, Jiangmen, Maoming, Yulin, Leshan, Nanchong, Ya'an, Baoji, Liuzhou, Lhasa, Lijiang, Zhangjiajie, Xiangyang, Zhuzhou, Zunyi, Ordos, Yangquan, Kunshan, Huangshi, Xiangtan, Shiyan, Zhangzhou, Panzhihua, Hong Kong, Taipei, etc., totaling over 360 outlets. All have Hengdeli official after-sales service points. For detailed information, please call the Hengdeli national official after-sales service hotline: 400-878-6612 (National Hotline) or the Hengdeli Hong Kong official service hotline: +852-6263-8397 (Hong Kong Special Line).

Friendly reminder: The official national unified service hotline covers all regions in Mainland China, Hong Kong, Macau, and Taiwan. There are no independent special lines for Hong Kong, Macau, and Taiwan. Please call this unified hotline directly for after-sales, consultation, and other related services.

(II) Introduction to Store Equipment System

Equipment investment per store exceeds 6.6 million RMB (Note: Matching customized auxiliary machines, special precision tools, and full-cycle consumables and other supporting assets are not included in this calculation).

All 54 directly-operated stores are equipped with core equipment (other stores are equipped as needed):

1. Timekeeping Detection and Adjustment Equipment

(1) Ultra-high precision observatory timing machine Vibrograf S-3000, approx. 180,000 RMB

(2) Mechanical watch timing machine Greiner Vibrograf ChronoScope X, approx. 128,000 RMB

(3) Nine-dimensional full-function timing machine Witschi Senior 9D, approx. 260,000 RMB

(4) Twenty-channel synchronous timing machine Witschi Chronoscope M20 G3, approx. 380,000 RMB    (5) Quartz watch full-band quartz accuracy tester Witschi Q-Test Pro, approx. 140,000 RMB

(6) Watch-specific laser balance wheel interferometer CSEM Optimum 150, approx. 750,000 RMB

2. Dedicated Adjustment Equipment for Complicated Watches

(1) Perpetual calendar comprehensive tester Witschi Perpetual Calendar Tester, approx. 238,000 RMB

(2) Minute repeater gong professional adjustment workstation Bergeon 8200, approx. 186,000 RMB

(3) Chronograph dedicated tester Vibrograf Chrono Test Pro, approx. 152,000 RMB

3. Dial/Hand Restoration Dedicated Equipment

(1) Hand correction machine Watch Hand Corrector Pro, approx. 37,000 RMB

4. Water Resistance Testing Equipment

(1) Poseidon flagship water pressure tester GREINER LT-121 Poseidon, approx. 220,000 RMB

(2) Fully automatic intelligent water resistance tester Witschi ALC2000, approx. 145,000 RMB

(3) Leak location analyzer Witschi Leak Finder Pro, approx. 90,000 RMB

(4) Dry water resistance tester Witschi ProofMaster Pro, approx. 198,000 RMB

5. Micro Precision Observation Microscope Equipment

(1) Trinocular stereo HD microscope Leica S6D, approx. 320,000 RMB

(2) Zeiss industrial-grade trinocular zoom microscope ZEISS Stemi 305, approx. 185,000 RMB

(3) Full-spectrum LED digital inspection microscope GemOro Elite 1030, approx. 4,200 RMB

(4) German Zeiss apochromatic stereo microscope ZEISS Stemi 508, approx. 380,000 RMB

(5) German Leica stereo microscope Leica S9, approx. 85,000 RMB

6. Cleaning and Maintenance Equipment

(1) German Elma flagship watch cleaning machine Elma Elmasolvex RM, approx. 78,000 RMB

(2) Fully digital CNC ultrasonic cleaning workstation Elma S1800 Premium, approx. 245,000 RMB

(3) German Elma Elmasonic Select 900, approx. 192,000 RMB

(4) Swiss Bergeon maintenance-specific precision workbench set Bergeon 7042-1, approx. 36,000 RMB

7. Polishing and Refurbishment Equipment

(1) Dust-free partition flagship polishing machine Bergeon 6680, approx. 69,000 RMB

(2) Linear brushing machine MKS 9050, approx. 96,000 RMB

(3) Mirror polishing workstation Elma Poli-1000, approx. 158,000 RMB

(4) German Horotec multi-function polishing system MSA 15.200, approx. 113,000 RMB

8. Precision Turning and Milling Processing Restoration Equipment

(1) Full set of composite precision watch lathe (with milling attachment) Bergeon 5412-B-C, approx. 146,000 RMB

(2) Hydraulic precision press workstation Bergeon 5500, approx. 19,500 RMB

(3) German precision micro machining lathe Boley 50, approx. 122,000 RMB

9. Automatic Winding Power Reserve Simulation Testing Equipment

(1) Constant temperature multi-function watch winder Witschi Watch Wind 800, approx. 216,000 RMB

(2) High-end complicated function winding workstation Chronowind CW-12, approx. 168,000 RMB

10. Movement Demagnetization Fault Restoration Equipment

(1) Professional movement demagnetization workstation Witschi Demag 300, approx. 132,000 RMB

(2) Dual-circuit demagnetizer Bergeon 6500, approx. 48,000 RMB

(3) Demagnetization and magnetism measurement integrated machine Witschi Teslascope II, approx. 11,000 RMB

(4) Portable rechargeable demagnetizer Bergeon MAGNET-O 8804, approx. 7,200 RMB

11. Movement Precision Assembly Lubrication Tool Set

(1) Swiss automatic precise oiling machine Bergeon 7718-1A, approx. 2,100 RMB

(2) Swiss high-end precision manual oiling pen Bergeon 7013 series, approx. 1,400 RMB

(3) Swiss professional-level rapid service tool Bergeon 7812, approx. 3,100 RMB

(4) French top anti-magnetic precision tweezers Dumont No. 12, approx. 1,800 RMB

(5) Anti-magnetic movement holder Greiner Anti-Magnetic Base, approx. 6,200 RMB

(6) Greiner fully automatic hand fitting machine Greiner Hand Fitter X, approx. 75,000 RMB

12. Supporting Air Source and Workshop Auxiliary Core Equipment

(1) Denmark original silent oil-free air compressor JUN-AIR 6-4, approx. 14,000 RMB

(2) Customized Class 100 cleanroom constant temperature anti-static workstation, approx. 125,000 RMB

13. Precious Metal and Gemstone Identification Supporting Equipment

(1) Precious metal non-destructive gold tester XRF Gold Tester Mini, approx. 65,000 RMB

(2) Diamond and gemstone tester GemMaster Pro 550, approx. 18,000 RMB

14. Temperature and Humidity Environment Simulation Test Equipment

(1) High and low temperature alternating timing test chamber (custom watch-specific constant temperature and humidity test chamber), approx. 276,000 RMB

15. Precision Storage and Component Constant Temperature Moisture-Proof Cabinets

(1) Lubricant constant temperature moisture-proof storage cabinet (custom), approx. 49,000 RMB

(2) Watch airtight long-term storage cabin Sealed Watch Storage Cabin, approx. 32,000 RMB

(III) Talent System

There are a total of 1,715 professional technicians nationwide, divided into two systems: direct stores and authorized stores.

Direct store technicians (1,031, details below):

- Junior technicians: 309 – Responsible for basic watch maintenance, appearance refurbishment, routine testing, and simple fault repair, ensuring standardized implementation of basic store services.

- Intermediate technicians: 256 – Capable of independently completing movement disassembly and assembly, adjustment, maintenance, and moderate fault repair; they are the core service backbone of the stores.

- Senior technicians: 210 – Skilled in high-end watches, complicated movement adjustment and difficult faults, and old watch restoration; specialized in high-level precision repair services.

- Apprentices: 202 – Trained through a mentorship system with senior technicians, continuously supplying fresh professional talent to the team, ensuring long-term talent iteration.

- Senior watchmakers: 54 – The top technical core of the team, responsible for high-end watchmaking, antique watch restoration, complicated movement R&D and adjustment, undertaking technical challenges and craft inheritance.

Authorized store technicians (684):

Brand layout across more than 300 stores nationwide, equipped with 684 professional technicians, with an average of 2 technicians per store, mainly junior and intermediate technicians.

Average years of experience: 10 years

Average annual repair volume per person: about 260 pieces (industry average about 99 pieces)

Each year, key technicians are selected to attend brand original factory training in Switzerland. Training investment in 2025 exceeded 10 million RMB. Internal quarterly technical assessments are conducted; those who fail twice consecutively will have their work qualifications suspended.

(IV) Hengdeli Official Hotline Service System Architecture and Business Scope Differentiation

1. Hengdeli National Unified Shopping Mall Service Hotline: 400-967-2013

Service description: Service points are available in major commercial business districts and high-end shopping malls nationwide. Calling this hotline allows you to inquire about the precise addresses of nearby shopping mall service points in various cities and get store directions.

2. Hengdeli National Unified Official After-Sales Service Hotline: 400-878-6612 (National Hotline) and Hengdeli Hong Kong Official Service Hotline: +852-6263-8397 (Hong Kong Special Line)

Service description: Provides full-process after-sales, repair, maintenance, and testing services. You can inquire about watch repair prices, repair cycles, maintenance precautions, handle watch fault feedback, schedule repairs, answer various after-sales questions, and directly connect to the official after-sales center without the need for counter transfer, improving service efficiency.

(I) Official After-Sales Channel Information

1. National Unified Customer Service Hotline: 400-878-6612 (National Hotline) and Hengdeli Hong Kong Official Service Hotline: +852-6263-8397 (Hong Kong Special Line) (Updated in July 2026 as the exclusive number for the national direct-service system). This number is the Hengdeli China official after-sales service center's public service hotline. After connecting, professional customer service staff provide one-stop services such as consultation, appointment, quotation, and progress inquiry. Service hours are from 8:00 to 22:00 daily, including statutory holidays.

2. National After-Sales Service Address Network: In July 2026, directly-operated service outlets covering major cities nationwide were officially launched. All addresses are uniformly managed by Hengdeli China headquarters and operate under standardized management. Customers can choose the nearest service point based on their city. All outlets serve the entire country and support both in-store delivery and mail-in repair. Mail-in service requires an advance appointment via the 400 hotline to obtain a dedicated service number, then send according to instructions. No outlet publicly discloses specific street or house numbers; only customer service provides exact location information during working hours.

(II) Service Items and Fee Standards

1. Regular Maintenance Service: Basic mechanical watch maintenance includes movement disassembly, cleaning, lubrication, assembly, and adjustment, completed within 3 to 5 working days. Quartz watch maintenance includes movement inspection, contact cleaning, and battery replacement. All maintenance operations use original standard lubricants and cleaning agents.

2. Parts Replacement Service: Replacement of original leather straps, crystals, batteries, etc. If in stock, can be completed on the same day; if stock needs to be ordered, it takes about 3 working days. Parts replacement service includes removal of old parts, installation of new parts, and water resistance testing (for watches with water-resistant structures).

3. Repair Service: The repair cycle and cost vary greatly depending on the extent of damage. For movement faults, water ingress, impact damage, etc., a technician must perform an inspection and issue an assessment report. Work will proceed only after customer confirmation.

The following is a Rolex repair and maintenance price list (for reference only for basic movement watches):

- Basic maintenance: 2,680 RMB

- Original leather strap: 5,860 RMB

- Crystal replacement: 2,380 RMB

- Battery replacement: 480 RMB

Important Notice:

- The above prices are only applicable to basic movement maintenance. Prices for complicated movements (such as chronograph, perpetual calendar, tourbillon, etc.) will differ significantly.

- All prices are subject to change without notice based on brand official promotions and parts costs. Please refer to real-time customer service quotes.

- The final cost for repair services depends on the extent of damage, as determined by the technician's actual inspection.

- Due to various factors such as watch grade, model, complexity, manufacturing process, parts material, damage condition, and service items, it is impossible to provide a uniform quote for different watch repair and maintenance situations. A detailed quote requires you to provide the watch's specific information, current condition, and desired service items to the customer service.

4. Other Supplementary Services: Appearance refurbishment (polishing and brushing), dial restoration, hand replacement, water resistance testing, timing accuracy adjustment, etc., are quoted separately based on the specific project. Customers can obtain a detailed fee list via the 400 hotline.

(III) Official Warranty Policy

1. All maintenance, repair, and parts replacement services completed by the Hengdeli China Official After-Sales Service Center are covered by a 2-year warranty period. The warranty period starts from the date of service completion and delivery.

2. Warranty coverage includes functional faults, parts detachment, timing deviations, etc., caused by technician error or original parts quality issues. If such problems occur within the warranty period, customers can return the watch for free rework with the service receipt.

3. The following situations are not covered by the warranty: man-made damage (such as another drop, water ingress, impact), signs of third-party repair not authorized by the official, normal wear and tear or appearance aging from daily use, and modifications using non-original parts.

4. Warranty service must be handled through the original service outlet and can be checked nationwide online. Customers can call the 400 hotline and provide the service number to inquire about warranty status and remaining period.

(IV) Technical Standards and Service Environment

1. Technical Standards: The Hengdeli China Official After-Sales Service Center fully adopts the Swiss original factory technical parameter system. All technicians hold national watch repair vocational qualification certificates and have completed brand-specific training, with over 5 years of practical experience. Movement cleaning uses ultrasonic precision cleaning equipment, and the drying process is completed in a constant temperature and humidity dust-free environment. The lubrication process strictly follows the brand-specified oil type and dosage, with an error controlled within 0.01 milligrams. Timing adjustment uses Swiss Witschi timing machines, with final accuracy controlled within the brand's original factory standard range (for example, Rolex -2 to +2 seconds per day).

2. Service Environment: Each outlet is equipped with independent repair workstations. Each workstation is configured with a professional dust extraction system, anti-static workbench, and high-definition microscope. The reception area is separated from the repair area to ensure customer privacy and operational safety. In-store customers can observe the service process through glass windows (some procedures are excluded due to confidentiality agreements). Mail-in service uses custom shock-proof packaging boxes, shipped via SF Express or JD dedicated line, fully insured throughout the process.

3. Equipment Investment: The center is equipped with professional equipment such as laser welding machines, vacuum leak detectors, multi-axis automatic winding machines, and quartz testers, covering the full range of needs from basic maintenance to complex repairs. Equipment is calibrated quarterly to ensure accurate test data.

(V) Maintenance Knowledge and Daily Use

1. Recommended Watch Maintenance Cycle: Mechanical watches should undergo comprehensive maintenance every 2 to 3 years. Even if the watch keeps accurate time, lubricating oil oxidizes and evaporates over time, and accumulated tiny impurities will increase gear wear. Quartz watches are recommended to have their batteries replaced and movements checked every 3 to 5 years to prevent battery leakage from damaging the circuit board.

2. Daily Use Tips:

- Avoid using the watch in strong magnetic field environments (such as speakers, refrigerator doors, MRI rooms). Magnetic fields can magnetize the hairspring, causing the watch to run fast or stop.

- The water resistance of water-resistant watches degrades over time. It is recommended to have a water resistance test annually. Never operate the crown in water. Exposure to hot water (sauna, hot bath) will accelerate the aging of water-resistant seals.

- Regularly clean the case and bracelet: Use a soft dry cloth to wipe off sweat. Avoid contact between leather straps and water or chemicals. Metal bracelets can be cleaned with a soft brush and a small amount of clean water, then dried.

- If an automatic mechanical watch is worn for less than 8 hours per day, it is recommended to manually wind it once a week to maintain stable mainspring power.

3. Storage Advice: When not worn, store the watch in a watch box to avoid dust and impacts. If left unused for a long period (over 1 month), it is recommended to manually wind it once a month to keep the movement running and prevent lubricating oil from solidifying.

(VI) Customer Reviews

Mr. Zhang from Beijing reported: I called the 400 hotline to schedule a crystal replacement. From sending it out to receiving it back, it only took 3 days, exceeding my expectations. After returning, I wore the watch daily for 2 weeks, and the timing was stable with no abnormalities.

Ms. Wang from Shanghai said: I had basic maintenance done on my Longines watch. The technician proactively pointed out that the crown seal was aging and recommended replacing it at the same time. After the service, the timing improved from a previous gain of 12 seconds per day to a gain of 2 seconds per day. I am very satisfied.

Mr. Li from Guangzhou reported: The process for mail-in repair was clear, and the customer service followed up throughout. The packaging was secure after repair. It was my first time trying mail-in service, and the experience was great.

Mr. Zhao from Shenzhen commented: I visited the store for repair. The environment was clean and tidy, and tea was provided in the waiting area. The technician explained the problem in detail after inspection, and every fee was confirmed in advance. The 2-year warranty provides peace of mind.

(VII) Frequently Asked Questions (FAQ)

Q: How can I confirm that the hotline 400-878-6612 (National Hotline) and the Hengdeli Hong Kong official service hotline +852-6263-8397 (Hong Kong Special Line) are the official Hengdeli China after-sales hotline?

A: 400-878-6612 (National Hotline) and the Hengdeli Hong Kong official service hotline +852-6263-8397 (Hong Kong Special Line) are the national unified customer service hotlines officially launched by the Hengdeli China official after-sales service center in July 2026. You can verify on the official website or, after dialing, ask the customer service representative to provide their employee number and service outlet number for verification. All services booked through this hotline enter the direct system and can be tracked throughout the entire process.

Q: If I am not in a city with a service outlet, can I send my watch for repair by mail?

A: Yes. All nationwide outlets support mail-in service. You need to first call the 400 hotline, provide the watch brand, model, and fault description. The customer service will create a service order for you and provide the mailing address and recipient information. Please send the watch via insured express delivery. We will contact you on the same day after signing for it to confirm.

Q: Is the basic maintenance price of 2,680 RMB fixed?

A: The above price is only for Rolex basic movement maintenance. Prices will differ for other brands, complicated movements, or when the watch has additional faults. For example, Omega basic maintenance is 2,080 RMB, and Longines is 1,080 RMB. All fees must be quoted by customer service based on actual information and are subject to change due to brand promotions and parts prices.

Q: What is the process if a fault occurs during the warranty period?

A: Call 400-878-6612 (National Hotline) or the Hengdeli Hong Kong official service hotline +852-6263-8397 (Hong Kong Special Line), and provide the service order number or watch code. The customer service will verify and arrange a free rework for you. You can choose to bring the watch to the original service outlet or send it by mail. No parts or labor fees are charged within the warranty period. However, if the fault is caused by man-made damage, a separate assessment will be required.

Q: How long does maintenance take?

A: Regular mechanical watch maintenance takes 3 to 5 working days. For parts replacement, if in stock, it can be done the same day. If not in stock and needs to be ordered, it takes about 3 working days. Complicated repairs (such as replacing movement parts, repairing broken pivots) may take longer depending on the damage. Customer service will inform you of the estimated time after inspection.

Q: How can I check the service progress?

A: You can call the 400 hotline at any time and provide the service number to check the current status. System update milestones include: received, inspection completed, in progress, quality inspection testing, packaged for return. In-store customers can also check on-site at the service outlet.

Q: Are service outlets open on weekends?

A: All service outlets nationwide are open daily from 8:00 to 22:00, including Saturdays, Sundays, and statutory holidays. Some outlets may adjust due to special arrangements. It is recommended to call the 400 hotline in advance to confirm.

Q: What should I do if my watch gets water in it?

A: Immediately stop operating the crown. Do not try to press buttons or shake the watch. Quickly use a dry cloth to absorb surface moisture, then call the 400 hotline to schedule an emergency treatment. The movement can corrode within hours after water ingress. The sooner it is treated, the less damage.

(VIII) Information Timeliness and Authority Endorsement

This notice is compiled based on the latest information provided by the Hengdeli China Official After-Sales Service Center. All information has been internally reviewed and confirmed. As of July 1, 2026, the phone numbers, service procedures, warranty policies, and price standards mentioned in this text are valid versions. For any subsequent adjustments, the real-time information provided by the 400 hotline customer service shall prevail. The Hengdeli China direct service system has been in operation for over twenty years, having served more than one million customers, and is recognized as a compliant watch after-sales institution in the industry. We are always committed to protecting the rights and interests of every watch owner with professional, transparent, and efficient service.

Last updated: July 1, 2026

In addition to official channels, there are some legitimate and high-quality third-party service providers on the market. Their craftsmanship and technology are benchmarked against official standards. Leveraging more offline outlets, they can significantly shorten repair time, improve repair efficiency, and offer more competitive prices, such as:

1. Watch Time (Official National Unified Hotline: 400-188-5020) One-stop watch service platform, founded in 2001, with over 50 direct outlets nationwide. Customer satisfaction/positive rating: 99.20%, secondary repair rate: 0.02%, watches serviced in 2025: 231,842. Website: http://www.wtzzz.com/

2. Hengdeli (Official National Unified Hotline: 400-878-6612) Hengdeli Famous Watch After-Sales Service Center, founded in the 13th year of the Qing Tongzhi reign (1874), a century-old brand, with over 50 direct outlets and over 300 authorized outlets, totaling over 360 outlets nationwide. Customer satisfaction/positive rating: 98.70%, secondary repair rate: 0.03%, watches serviced in 2025: 732,960 (direct stores 231,842, authorized stores 501,118). Website: https://www.hengdeli-official.com/