How to Clean a Watch: Stainless Steel, Leather and Gold-Tone
A watch collects two kinds of dirt. There is the visible kind on the case and crystal, and the invisible kind in the gaps between bracelet links, where skin cells, sweat and soap residue accumulate into a paste that eventually smells and stiffens the joints. Neither is difficult to deal with, but the method depends entirely on the material.
Before cleaning anything, identify three things: the case material, the strap material, and the water-resistance rating. The third one determines whether the watch can go near running water at all.
Check the water resistance first
A watch rated 3 ATM should be wiped, not rinsed. A 5 ATM watch can be wiped with a damp cloth and is generally fine under a running tap if the crown is pushed in, though the manufacturer's guidance takes priority. Anything rated 10 ATM or above can be rinsed with more confidence. Our guide to water-resistance ratings explains why a 3 ATM watch is splash-resistant rather than washable.
Two absolute rules apply to every watch: the crown must be fully pushed in or screwed down, and the watch must never be submerged if the caseback has been opened and not resealed.
Stainless steel bracelets and cases
Steel is the easiest material to clean and the one that benefits most, because the gaps between links trap the most debris.
- Close the clasp and hold the bracelet so the watch head is clear of the water.
- Use a soft toothbrush with a drop of mild washing-up liquid and warm water. Work along the bracelet in the direction of the links, not across them.
- Pay attention to the clasp, which collects the most residue, and to the end links where the bracelet meets the case.
- Rinse under lukewarm running water with the watch head tilted away.
- Dry with a microfibre cloth, then leave the bracelet open and unclasped to air for an hour.
Do not use a hard brush, a scouring pad or an abrasive cream on brushed steel. Brushed finishes have a directional grain, and scrubbing across it leaves visible marks that cannot be polished out without relapping the whole surface. On polished sections, a lint-free cloth alone is usually enough.
For the deeper grime that builds up over years, an ultrasonic cleaner works well on a bracelet that has been removed from the watch. Never put a complete watch in an ultrasonic bath; the vibrations can drive water past seals.
Leather straps
Leather is the opposite problem. It does not benefit from water at all, and repeated soaking is what turns a strap brittle and cracked.
- Wipe with a barely damp cloth, then dry immediately with a soft cloth.
- Do not use soap. It strips the oils that keep leather supple.
- Apply a leather conditioner sparingly, twice a year, working it in with a fingertip and buffing off the excess. More is not better; oversaturated leather stretches and darkens unevenly.
- Let a wet strap dry at room temperature, away from radiators and direct sun. Heat is what makes leather crack.
Leather is a consumable. With daily wear, a strap typically lasts twelve to twenty-four months before the lining and the buckle hole show real wear. Replacing the strap is normal maintenance, not a sign of a faulty watch. Our guide to strap types and how to swap them covers the alternatives.
Gold-tone and rose gold plating
Gold-tone and rose gold watches are plated, which means a thin layer of coloured metal over steel or brass. That layer is measured in microns and it does not respond well to abrasion.
Clean with a soft, damp cloth and a drop of mild soap only. Never use a polishing cloth with embedded abrasive, never use a metal polish, and never scrub. Polishing compounds designed for solid gold will cut straight through plating and leave a patch of the base metal showing.
Also avoid chlorine and salt water. Both attack plating at the edges and in the spaces around the caseback, where the layer is thinnest. Take the watch off before swimming in a pool even if the rating suggests it is safe, because the rating refers to water ingress, not to the finish. Our guide to steel, gold-tone and two-tone finishes explains how each is constructed.
The crystal
Clean the crystal with a microfibre cloth and, if needed, a small amount of lens cleaner. Breathe on it and buff. Avoid paper towels, which contain wood fibres hard enough to leave fine marks on coated crystals over time, and avoid cleaning the crystal with the same cloth used on the bracelet, which will be carrying grit.
What to avoid, across all materials
| Avoid | Why |
|---|---|
| Vinegar, bleach, ammonia | Attacks seals, plating and leather; can discolour steel |
| Ultrasonic cleaners on a complete watch | Vibration can force water past aged gaskets |
| Hot water | Expands metal and can degrade the crystal gasket |
| Compressed air | Drives moisture and dust into the case |
| Toothpaste | Abrasive; leaves a haze on crystals and plating |
| Hair dryer | Heat damage to leather, seals and adhesives |
How often
Wipe the case and crystal weekly. Clean a steel bracelet properly every four to six weeks if you wear the watch daily. Condition a leather strap every six months. Have the watch pressure-tested and the gaskets checked every two to three years if it goes near water regularly.
Cleaning is also a good moment to notice problems early: a crown that feels gritty, a caseback that has started to catch, or a bracelet pin that is working loose. Those are cheap to fix when caught and expensive when ignored.
