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1Scan for outdated or missing drivers - takes under a minute2Clear out junk files and repair common Windows errors3Fix the driver behind crashes, sound loss and screen glitchesFor a Longines watch, check the exact model’s manual and case-back marking before water use, and use an official dealer or approved Longines Service Centre for repairs and servicing. Longines’ international warranty generally runs for 24 months, with five years for qualifying mechanical watches purchased from January 1, 2021; water-resistance markings describe pressure ratings, not an unconditional promise for every activity or watch condition.
How often should a Longines watch be serviced?
Longines recommends that water-resistance be checked once a year by an approved service centre. That is not the same as a universal recommendation to have every watch receive a full maintenance service annually. The official FAQ raises the question of maintenance-service frequency, but does not provide an answer on the page; use the manual for your model and ask an approved service centre about its service timing.
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Where can you send a Longines watch for service or repair?
Longines directs owners to an official dealer or an approved Longines Service Centre for repairs, adjustments, and servicing. Check Longines’ regional service page or service-centre locator for current local instructions. A prepaid shipping option published for Switzerland is limited to individuals in Switzerland and should not be treated as a worldwide route.
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Longines’ international warranty page states that coverage begins on the purchase date and lasts 24 months for Longines watches generally. It states a five-year warranty for mechanical watches purchased from January 1, 2021, subject to the warranty conditions. A valid certificate must be dated and fully completed by an official Longines dealer.
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During the warranty period, and when the certificate is presented, qualifying defects in materials or manufacturing that existed at delivery are repaired free of charge. Longines says it may replace a watch with an identical or similar model if repair cannot restore it to full working order.
What is excluded?
The listed exclusions include battery life, normal wear and tear, and damage caused by improper use, neglect, or accidents. The warranty also excludes watches handled by a non-approved person for battery replacement, servicing, or repair. Read the full terms and keep the completed certificate; the manufacturer warranty is separate from a seller’s warranty and does not displace statutory rights.
Is service work covered separately?
Longines states that servicing operations carry a 24-month warranty on the work performed. Its stated limits exclude normal wear and damage from accidents or lack of care, and work by unauthorized parties voids that service warranty.
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How much does Longines watch service cost?
Longines publishes its service prices in Swiss francs (CHF), tax included. These are the figures in its published table, not a quote for a particular watch or a price guarantee in another country. Additional components may be charged separately; request a current estimate for your watch, location, and required work.
| Watch category | Partial service | Full service |
|---|---|---|
| Quartz, 2/3-hand with calendar | CHF 90 | CHF 230 |
| Mechanical, 2/3-hand with small complications | CHF 90 | CHF 350 |
| Quartz chronograph | CHF 110 | CHF 330 |
| Mechanical chronograph / great complications | CHF 110 | CHF 460 |
| Battery service only | CHF 30 | Not listed |
| Vintage calibre produced before 1990 | Estimate | Estimate |
Longines says vintage calibres from before 1990 receive an estimate, and additional components are charged separately.
What is included in partial and full service?
Longines’ comparison lists assessment and identification, case and movement separation, case-and-bracelet cleaning, movement assembly, aesthetic and rate controls, a water-tightness control when applicable, and a 24-month warranty on work for both service levels. Quartz service includes battery replacement; both descriptions include case reassembly with parts exchanged if needed to guarantee water-resistance.
Full service additionally lists case disassembly, polishing when applicable, movement disassembly or replacement, cleaning of movement components, reassembly and oiling, and replacement of worn spare parts. Ask the service centre to explain which work applies and whether parts will add to the published amount.
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Clear out junk files and repair common Windows errorsFree Scan →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →What do Longines water-resistance markings mean?
Check the marking on your watch’s case back and its own manual. Longines’ instruction manual gives these pressure-rating equivalents under ISO 22810:
| Case-back marking | Stated equivalent |
|---|---|
| No water-resistance marking | Not water-resistant |
| 3 bar | 30 metres |
| 5 bar | 50 metres |
| 10 bar | 100 metres |
| 30 bar | 300 metres |
The metre figures correspond to overpressure applied under ISO 22810. They are pressure-rating equivalents, not a blanket guarantee that a watch can be used at that depth or in every water activity. The exact reference and the watch’s condition matter. For example, Longines’ US product page lists the HYDROCONQUEST L3.784.4.56.9 at 30 bar; that rating does not establish the rating of other Longines models or other HydroConquest references.
How should you protect a Longines watch around water?
- Have water-resistance checked once a year by an approved Longines Service Centre.
- Before immersion, ensure the crown and pushers are pushed in or screwed down, as applicable.
- Do not operate the crown or pushers underwater.
- Rinse the watch with fresh water after contact with seawater.
- Do not open the watch yourself; take it to an approved service centre.
Longines cautions that water-resistance can be affected by gaskets drying out or an accidental impact on the crown. A rating therefore should not be relied on without regard to the watch’s condition.
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