Watch Care and Maintenance: Protecting Your Luxury Timepieces

The way you handle your watch day to day has a greater cumulative impact on its condition than almost any other factor. Small habits compound over years into the difference between a watch that looks five years old and one that looks twenty.

• Put your watch on last, take it off first. Cologne, sunscreen, and lotion contain chemicals that degrade gaskets, discolor metal, and attack leather straps. Apply personal care products before putting on your watch and remove the watch before applying anything to your skin.
• Avoid setting the date between 9 PM and 3 AM. In most mechanical watches, the date-change mechanism begins engaging around 9 PM and completes by 3 AM. Manually advancing the date during this window can damage the date wheel, jumper spring, or intermediate wheel. Wind the hands past 3 AM first, then set the date.
• Screw down the crown completely. For any watch with a screw-down crown (most sport and dive watches), always ensure the crown is fully screwed in after setting. An unsealed crown is the most common cause of water intrusion.
• Be conscious of impacts. Desks, doorframes, and countertops are the enemies of watch cases and crystals. Wearing your watch on your non-dominant hand reduces but does not eliminate impact risk. If you are doing manual work, take the watch off.

Magnetism is one of the most common and underappreciated threats to mechanical watch accuracy. When the hairspring of a mechanical movement becomes magnetized, its coils stick together, shortening the effective length and causing the watch to run dramatically fast, often gaining minutes per day rather than seconds.

Sources of magnetic fields are everywhere in modern life: smartphones, tablet covers with magnetic closures, laptop speakers, magnetic bag clasps, induction cooktops, MRI machines, and even the magnetic strips on refrigerator doors.

Fortunately, some modern movements incorporate antimagnetic materials. Omega's Master Chronometer calibers resist fields up to 15,000 gauss. Rolex's Milgauss was designed specifically for scientific environments with magnetic exposure. IWC's soft-iron inner cases provide Faraday cage protection.

For watches without dedicated antimagnetic protection:

• Keep your watch at least 5-10 cm from smartphones, especially while charging
• Do not place watches on laptop keyboards or speakers
• Be aware of magnetic closures on bags, cases, and folios
• If your watch suddenly starts running significantly fast, magnetism is the likely culprit and a watchmaker can demagnetize it in minutes

Water resistance ratings are among the most misunderstood specifications in watchmaking. The ratings are derived from static pressure tests conducted in laboratory conditions, not from real-world water exposure scenarios.

Rating	Actual Safe Use	Not Safe For
30m / 3 ATM	Rain, hand washing, splashes	Swimming, showering, submersion
50m / 5 ATM	Brief, shallow swimming	Snorkeling, diving, water sports
100m / 10 ATM	Swimming, snorkeling	Scuba diving
200m / 20 ATM	Recreational scuba diving	Professional deep diving
300m+ / 30+ ATM	Professional diving, saturation diving	—

Critical caveats: Water resistance degrades over time as gaskets age and compress. A watch rated for 200m when new may effectively be a 50m watch after five years without gasket replacement. Hot water (showers, hot tubs) causes gaskets to expand and contract, accelerating degradation. And the crown must be fully screwed down or pushed in for any water resistance to be effective.

Have water resistance tested annually for watches you wear around water. This is a quick, inexpensive test that any qualified watchmaker can perform.

Regular cleaning prevents buildup that can damage finishes and compromise gaskets. The approach depends on the watch's water resistance and materials.

Steel and Ceramic Sport Watches (100m+ WR)

These are the easiest to clean. Use lukewarm (never hot) water with a tiny amount of mild soap. A soft toothbrush can reach between bracelet links and around the bezel. Rinse thoroughly and dry with a lint-free cloth. Do this monthly for daily-wear pieces.

Precious Metal and Dress Watches

Gold and platinum are softer than steel and scratch more easily. Use only a microfiber cloth for routine cleaning. For deeper cleaning, dampen the cloth slightly but avoid submerging watches with lower water resistance ratings. Never use chemical cleaners or polish on watch cases, as these remove finish and sharpen edges.

Leather Straps

Leather is the most vulnerable component. It absorbs moisture, sweat, oils, and chemicals, all of which shorten its lifespan. Allow straps to air dry after wearing. Rotate between multiple straps to extend lifespan. Never submerge a leather strap. When a strap becomes stiff, discolored, or odorous, replace it rather than attempting to clean it.

Rubber and Fabric Straps

Rinse rubber straps with fresh water after saltwater or sweat exposure. NATO and fabric straps can be hand-washed with mild soap and air-dried flat. Both materials are more durable than leather and ideal for active use.

Proper storage protects watches from dust, moisture, UV damage, physical impacts, and magnetism. For any collection beyond a single watch, invest in appropriate storage.

Watch boxes and cases: Individual cushions or slots prevent watches from contacting each other. Look for soft lining materials (microfiber, Alcantara) that will not scratch cases. Keep the box in a cool, dry location away from direct sunlight, which can fade dials and degrade gaskets.

Watch winders: For automatic watches not worn regularly, a quality winder keeps the movement running, lubricants distributed, and the date and day correct. However, cheap winders with incorrect rotation settings can accelerate wear. Match the winder's turns-per-day (TPD) setting to your movement's specification. If in doubt, most modern automatics are bidirectional and perform well at 650-800 TPD.

Safe storage: For high-value collections, a home safe rated UL-TL15 or better, bolted to the floor, provides theft protection and often qualifies for insurance premium reductions. Store documentation separately from the watches themselves, ideally in a fireproof safe or digitally.

For digital documentation and watch-by-watch record keeping, ServiceVault provides a centralized digital vault that backs up the physical records you keep at home, ensuring your collection data survives even if physical documents do not.

Collectors can handle cleaning, proper storage, and daily care habits themselves. But certain maintenance must be performed by a qualified watchmaker:

• Gasket replacement and water resistance testing — Requires specific tools and pressure testing equipment.
• Crystal replacement — Even a minor scratch on a sapphire crystal should be assessed professionally. Cracked crystals must be replaced immediately to prevent dust and moisture intrusion.
• Bracelet adjustment and link removal — While some bracelets have user-adjustable micro-links, adding or removing links should be done professionally to avoid scratching the bracelet or damaging the clasp mechanism.
• Demagnetization — Takes seconds with proper equipment but should not be attempted with consumer-grade magnets or uncontrolled methods.
• Regulation and timing adjustment — Adjusting the rate of a movement requires a timing machine and expertise to balance accuracy across multiple positions.

Track all professional maintenance in your service history log so you have a complete record of every intervention, who performed it, and what was done.