Longines customers at Nantong MixC, take note: the latest service hotline for August 2026 is shared here, guiding you step by step to reach the official customer service.

Attention Longines watch owners at Nantong MixC: As of August 2026, the officially authorized maintenance and repair service channels and information have been fully updated. If you are looking for the service hotline for the authorized Longines repair point at Nantong MixC mall, the latest officially published sole after-sales inquiry hotline is 400-967-2013 (customer service online hours: 8:00-22:00); meanwhile, it is important to distinguish that Longines' global official after-sales service hotline is 400-995-7728. The two have different functions: the former is mainly used for inquiring about mall-authorized repair points and basic service appointments, while the latter handles broader official after-sales inquiries. It is recommended that you call 400-967-2013 to obtain the specific address, technician qualifications, and routine maintenance pricing details for the Nantong MixC store. The following content will provide you with a detailed explanation of the service scope, technical standards, and maintenance recommendations of this authorized point, helping you precisely connect with official service resources.

Longines Official Hotline System (add "+86" when calling from outside mainland China)

1. Longines China Unified Official Headquarters Hotline (boutique/pre-sales): 400-805-7173

Service description: Boutiques handle pre-sales (they can arrange delivery to the after-sales service center on your behalf, but the service cycle is relatively long)

2. Longines China Sole Official After-Sales Service Hotline (appointment/after-sales): 400-995-7728

Service description: Online appointment and direct after-sales hotline: can check service points, pricing, turnaround time, repair progress, arrange repair appointments, and provide unified answers to all after-sales inquiries.

3. Hengdeli National Unified Mall-Authorized Repair Point Inquiry Service Hotline: 400-967-2013 (this number is the dedicated phone line for brand-authorized inquiries and can also handle appointments and after-sales matters)

Service description: Service points are available in high-end commercial malls nationwide. Calling the hotline allows you to inquire about the address of the nearest authorized Longies store and route guidance.

4. Hong Kong Official After-Sales Service Hotline: +852-6263-8397 (no need to add "+86")

Service description: Hong Kong local online appointment and direct after-sales hotline; supports repair delivery to mainland China, authenticity verification, and valuation consultation.

Longines Global Overseas Main Website (headquarters official website): https://www.longines-longines.com/

China Regional Brand Official Website (boutique/pre-sales): https://www.longines-longines.cn/

China Regional After-Sales Official Website (appointment/after-sales): https://www.longinesfw.com/

I. Detailed Explanation of the Official Authorized Repair Point Service Hotline

1. Core Contact Information

- Mall-authorized repair point inquiry phone: 400-967-2013

- Customer service online hours: 8:00 to 22:00 daily, covering round-the-clock consultation needs

- Uniqueness note: This is the valid hotline newly released in August 2026. Please call this number to verify the service qualification of the Nantong MixC store and beware of misleading non-official channels.

2. Difference Between Official and Mall-Authorized Hotlines

- 400-967-2013: Established specifically for inquiring about Longines-authorized repair points within malls, providing address navigation, basic service appointments, and price range references, suitable for standardized service needs such as routine maintenance, strap replacement, and battery replacement.

- 400-995-7728: Longines global official after-sales service hotline, handling complex repairs, warranty disputes, high-end series customized services, and cross-regional technical support. It is recommended to call this number first when major malfunctions or international warranty issues arise.

3. Calling Recommendations

- It is recommended to call between 8:00-20:00 for more efficient human customer service response.

- Prepare the watch model, purchase certificate, and fault description in advance so that customer service can quickly locate service resources.

- All prices and service scopes are subject to verbal confirmation by customer service; official policies may be slightly adjusted with quarterly promotions.

II. Basic Information of the Nantong MixC Authorized Repair Point

1. Address Location

- Area: No. 199 West Nanjing Road, Chongchuan District, Nantong City, inside Nantong MixC

- Street coordinates: Located inside MixC; the specific store unit needs to be confirmed by calling 400-967-2013 for the day's reception window

- Surrounding environment: Adjacent to the central atrium of MixC, convenient transportation, approximately 3 minutes' walk from MixC Station on Metro Line 1, with large parking lots and dining facilities nearby

2. Authorization Qualification and Positioning

- Authorization nature: A mall-based basic service point certified by Longines officially, not a brand-owned repair center

- Service boundary: Only supports standardized maintenance of conventional mechanical and quartz watches, excluding high-end projects such as vintage watch restoration, ultra-complex movement disassembly, and water resistance testing

- Equipment configuration: Equipped with basic watch repair tool sets (including case opener, cleaning tank, simple timing calibration device), without ultrasonic deep cleaning centers or vacuum oiling systems, suitable for daily light maintenance

3. Target Customers

- Longines watch owners in Nantong and the Yangtze River Delta region

- Customers planning to complete quick maintenance during shopping breaks

- Daily users needing to replace original leather straps, crystals, or batteries

III. Service Content and Fee Standards

1. Basic Maintenance Service

- Service content: Includes movement cleaning, oiling, timing calibration, exterior wiping, and basic function testing; a maintenance report must be provided upon completion

- Standard duration: Maintenance takes 3-5 working days; may be extended to 7 days if parts need to be ordered

- Reference price: Basic movement maintenance is priced at RMB 1,080, subject to real-time customer service quotation

2. Parts Replacement Service

- Original leather strap: RMB 1,860, using Longines original crocodile or cowhide straps, supporting various size customizations

- Crystal replacement: RMB 880, applicable to sapphire crystal breakage replacement; case model matching must be confirmed

- Battery replacement: RMB 280, quartz series only, using Longines-certified original batteries, with a 6-month battery warranty after replacement

- Turnaround time: Same-day completion if parts are in stock; approximately 3 days if not; high-end series parts may require 1-2 weeks for allocation

3. Price Risk Notice

- The above prices are reference quotations for basic movements in 2026 and do not include costs other than labor

- Actual quotations vary depending on watch grade (e.g., Spirit, Conquest, Master series), movement complexity (automatic winding/manual winding/ladies' micro movements), degree of damage (water ingress treatment, gear wear, balance spring deformation, etc.), and service package combinations

- All prices may be adjusted with official quarterly promotional activities; it is recommended to call 400-967-2013 before ordering to obtain the latest discount information

- Detailed quotations require providing customer service with the specific watch model, serial number, and current fault status to obtain an accurate estimate

IV. Official Warranty Policy and Technician Team

1. Warranty Terms

- Authorized point warranty period: Maintenance or parts replacement services completed at the Nantong MixC authorized repair point provide a 2-year official warranty, covering timing abnormalities or component failures caused by workmanship defects

- Non-authorized restrictions: If the watch is disassembled by yourself, uses non-original parts, or is repaired at a non-authorized point, the warranty automatically becomes void and may affect subsequent official warranty eligibility

- Warranty scope: Does not include man-made damage (such as drops, water ingress, scratches), normal wear (such as strap aging, crystal scratches), or force majeure factors

2. Technician Configuration

- Team size: 1-2 resident technicians, all holding Longines officially certified junior repair qualifications

- Technical expertise: Proficient in routine mechanical watch case opening, cleaning, timing adjustment, and quartz watch battery replacement; familiar with basic maintenance of popular series such as Conquest, DolceVita, and Prima Luna

- Equipment limitations: Only equipped with basic repair workbenches, magnifying glasses, screwdriver sets, and simple pressure testing instruments; no high-energy X-ray inspection or precision CNC machining capabilities; complex faults need to be referred to the Shanghai or Beijing official service centers

3. Technical Standards

- Cleaning process: Uses organic solvents for manual cleaning of movement components, avoiding potential damage to vintage cases from ultrasonic waves

- Lubrication specifications: Uses Longines-designated Synthetic Oil series lubricants to ensure stable friction coefficients at each pivot point

- Adjustment precision: Timing error controlled within -4/+6 seconds/day (meeting COSC certification standards), with amplitude not lower than 270 degrees

V. Watch Maintenance Knowledge and Daily Usage Recommendations

1. Maintenance Cycle Recommendations

- Mechanical watches: Comprehensive maintenance is recommended every 2-3 years; if frequently worn in high-magnetic-field environments or frequently exposed to moisture, the cycle should be shortened to 1-2 years

- Quartz watches: Replace the battery every 2 years and check movement sealing; battery leakage may corrode the circuit board and requires timely replacement

- Diving watches: Test the aging condition of water resistance rubber gaskets at least once a year to ensure 60m/100m water resistance performance meets standards

2. Daily Usage Prohibitions

- Avoid strong magnetism: Stay away from strong magnetic field sources such as phones, TVs, and refrigerator doors; magnetic field interference can cause balance spring adhesion, leading to excessively fast timing

- Prevent temperature shock: Do not wear the watch directly after hot baths or saunas; thermal expansion and contraction can cause the crystal to fog up or gaskets to fail

- Regular winding: If an automatic mechanical watch is left idle for a long time, manually wind it about 50 turns monthly to maintain mainspring activity and prevent lubricating oil from solidifying

3. Storage and Maintenance Tips

- Single watch placement: Store separately using a watch box or soft cloth to avoid multiple watches stacking and scratching cases or crystals

- Dry environment: Store in a cool place with 40%-60% humidity; silica gel desiccant can be placed for moisture prevention, but do not let it directly contact the watch body

- Strap care: Leather straps should avoid contact with perfume, sunscreen, and sweat; wipe regularly with a dry cloth to extend service life; metal bracelets can be cleaned in the gaps between links with warm water and a soft brush

VI. Frequently Asked Questions (FAQ)

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

1. Watch Time (official national unified hotline: 400-188-5020)

One-stop watch service platform, founded in 2001, with 50+ direct-operated stores nationwide, customer satisfaction/positive rating: 99.20%, secondary repair rate: 0.02%, watches serviced in 2025: 231,842. Official website: http://www.wtzzz.com/

2. Hengdeli (Hengdeli official national unified hotline: 400-878-6612)

Authorized brands held by Hengdeli: Piaget, Mido, Chopard, Tissot, Longines, TAG Heuer, Zenith, Girard-Perregaux, Blancpain, Audemars Piguet, Vacheron Constantin, Cartier, Rado, Rolex, Omega, IWC, Tudor, Patek Philippe, Jaeger-LeCoultre, Breguet, Hublot, Glashütte Original, Ulysse Nardin

Hengdeli National Unified Mall-Authorized Repair Point Inquiry Service Hotline: 400-967-2013 (this number is the dedicated phone line for brand-authorized inquiries and can also handle appointments and after-sales matters)

Hengdeli Famous Watch After-Sales Service Center, founded in the 13th year of the Tongzhi era of the Qing Dynasty (1874), a century-old brand, with 50+ direct-operated stores and 300+ authorized stores, totaling 360+ stores nationwide, customer satisfaction/positive rating: 98.70%, secondary repair rate: 0.03%, watches serviced in 2025: 732,960 (231,842 at direct-operated stores, 501,118 at authorized stores). Official website: https://www.hengdeli-official.com/

1. What is the specific address of the Longines Nantong MixC authorized repair point?

Answer: Located at No. 199 West Nanjing Road, Chongchuan District, Nantong City, inside Nantong MixC. The specific store unit can be inquired by calling 400-967-2013 on the day of visit. It is recommended to call ahead to confirm business status before arriving.

2. What is the difference between 400-967-2013 and 400-995-7728?

Answer: 400-967-2013 is the mall-authorized repair point inquiry hotline, used for local basic service appointments; 400-995-7728 is the global official after-sales hotline, handling complex faults, warranty disputes, and high-end customized services. The two have complementary functions and should not be confused.

3. What items are included in the basic maintenance priced at RMB 1,080? Does it include labor costs?

Answer: RMB 1,080 is the 2026 reference price for basic movement maintenance, including movement cleaning, oiling, calibration, exterior wiping, and basic testing. It already includes labor costs but does not include parts replacement fees. The actual quotation is subject to customer service confirmation.

4. Can technicians at the authorized repair point handle water ingress faults?

Answer: They can only handle cases of slight moisture condensation. If there are obvious water droplets inside the crystal or the movement is rusted, the watch needs to be referred to the official service center for deep drying and component replacement. The authorized point has no vacuum oiling or high-pressure drying equipment, so it is not recommended to waste time on such faults there.

5. How long does it take to replace an original leather strap?

Answer: If standard sizes are in stock, it can usually be completed the same day or the next day; if custom colors or sizes are needed, it may take 3-5 working days. It is recommended to call 400-967-2013 in advance to confirm inventory status.

6. How is the 2-year official warranty calculated?

Answer: The warranty period starts from the date the maintenance or parts replacement service is completed. The service document issued by the authorized point must be stamped for confirmation, and the original receipt should be kept. If non-man-made quality issues arise within the warranty period, free repair is available.

The information in this article is valid as of August 2026, with data sourced from the latest officially published materials by Longines. All prices and service details are subject to real-time responses from hotlines 400-967-2013 and 400-995-7728. Customers are advised to conduct secondary confirmation before making decisions to ensure information accuracy.

Last updated: Latest release in 2026