How Often Does a Watch Need Servicing?

Only a mechanical watch needs servicing. A quartz watch needs a battery, a solar watch needs nothing at all, and the difference between those three sentences is the entire running cost of a watch gift. If you are buying for someone who will not want a maintenance task, that is not a detail — it is the single most consequential thing on this page, and it is decided by the movement rather than the brand or the price.

We are not going to quote you an interval or a bill, and the reason is worth stating up front: no listing we track publishes either one. What they publish is a warranty, and mostly not even a length — of the 85 watch listings in our registry, exactly eight state a warranty term in years, and the other 77 give a brand name plus the word “limited”, or nothing. Anybody quoting you a firm service interval for a $200 watch is quoting something they did not get from the manufacturer.

What a service actually is

A full service on a mechanical watch means taking the movement apart, cleaning every component, replacing the worn parts and the gaskets, re-oiling the bearing surfaces, reassembling it, regulating the rate and pressure-testing the case. It is skilled hand work that takes hours, which is why it costs what it costs: you are buying a watchmaker’s time, not parts.

The reason it is needed at all is lubrication. A mechanical movement runs on a few microlitres of oil at each of its jewelled bearings, and oil degrades and migrates. A watch that keeps running on dry bearings does not stop — it wears, which is why “it still works fine” is not evidence that a service is unnecessary.

What each movement actually asks of its owner

Two consequences people miss. First, the quartz row is not free either: a battery change means opening the caseback, and a caseback refitted carelessly or with a tired gasket is the most common way a water-resistant watch quietly stops being one — which is covered properly in how to change a watch battery. Second, the solar row really is nothing. That is the whole argument for giving a solar watch to someone who will never maintain one.

When a service is worth paying for, and when it is not

Here is the arithmetic nobody likes. Skilled hand work has a floor price that does not scale down with the watch, so on an inexpensive mechanical watch the service can approach or exceed what the watch cost. That is not a scandal, it is just labour, and it leads to a plain rule:

• On a cheap automatic, run it until it stops and then decide. Many people simply replace the watch, and for a $90 automatic that is a rational choice rather than a philistine one.
• On a Swiss mechanical or a sentimental gift, service it. A watch given for a retirement or a wedding is meant to outlive the occasion, and servicing is how that happens. This is the one category where we would tell you to spend the money without hesitating.
• Get a quote before you commit, from two places.An independent watchmaker and the brand’s own service centre will not quote the same number, and the gap on an inexpensive watch can decide whether the job is worth doing. We do not publish a figure because we have not verified one — ask locally.

Which picks have a running cost, and which do not

Three watches from our own list, chosen to make the three outcomes concrete rather than because they are the only ones.

The Citizen is an Eco-Drive: a cell under the dial charges from any light and there is no battery to replace and no service interval to miss. The Seiko is quartz with a sapphire crystal, so the only recurring job in its life is a cell and the only risk is a sloppy caseback. The Tissot PRX Powermatic 80 is the opposite end on purpose — a Swiss automatic that will need a watchmaker at some point, is absolutely worth it when the time comes, and should be bought with that in mind. If that cost is unwelcome, our solar list is the honest alternative to the whole question.

Three things that extend any watch’s life for free

• Rinse it after salt water and dry it. Salt is the most aggressive thing most watches ever meet, and fresh water removes it.
• Do not use the crown or pushers underwater, and make sure the crown is pushed fully home before swimming. Almost every “water damage” story starts here.
• Have the gaskets replaced whenever the back comes off anyway. They are cheap, they perish with age, and the battery appointment is the natural moment. Our watch care basics covers the rest of the routine.

There is a second consequence of that fixed cost, beyond whether to pay it. A service costs roughly the same on a $200 watch as on a $2,000 one, which caps what a cheap mechanical watch can ever resell for — one service can exceed the whole used value. It is the main reason almost nothing in these price ranges holds its value, which our resale-value guide works through brand by brand.