Reviewed by the Fine Watch Guide team · October 2026
Ask five watchmakers how often to service a mechanical watch and you'll hear numbers that span years, because the honest answer depends on the movement, its age and how you wear it. Brands now publish longer intervals than they used to. Those intervals are guidance, though, and the watch itself is usually a better guide than the calendar.
Most mechanical watches benefit from a full service somewhere between five and ten years, with modern movements from brands such as Rolex now rated for roughly a decade and older calibers usually needing attention sooner. Poor timekeeping, a short power reserve or any moisture inside means service now, whatever the schedule says.
A published interval tells you how long the manufacturer expects a new watch to run within specification under normal wear. Improved lubricants, better materials such as silicon hairsprings, and tighter testing have pushed those numbers up. Rolex's guidance for current models sits at roughly ten years, and several other houses now quote long intervals for their newest calibers.
None of that applies automatically to a twenty-year-old movement, or to a watch that's been dropped, magnetized or worn hard on the water. The interval assumes the watch has been looked after. Yours may have been, but you'd want to know before you assume it.
Warranty terms tell you something too. Brands that offer long warranties on new watches are betting their movements will run cleanly for that period, which is part of why intervals have stretched. Outside warranty, the decision becomes yours, and the watch's behavior should drive it.
Timekeeping is the first thing to watch. A healthy mechanical watch drifts by seconds a day; one losing or gaining minutes is telling you something has changed, whether that's dried oil, a magnetized hairspring or a worn part. A power reserve that's suddenly much shorter, so the watch stops overnight when it never used to, points the same way.
Some symptoms can't wait at all. Fog or droplets under the crystal mean water is inside the case and rust can start within days. A rotor that grinds, a crown that feels loose or a chronograph pusher that sticks all justify a trip to a watchmaker before anything wears further.
A quick way to track timekeeping is to set the watch against your phone and check it at the same time each day for a week. A steady gain or loss of a few seconds is normal and often adjustable. A rate that wanders or grows by minutes is the kind of change a watchmaker wants to hear about.
Usually, yes. Older movements were designed around older lubricants and looser expectations, and their parts have had decades to wear. Many collectors service vintage pieces more often than modern ones, and they choose watchmakers who will clean and regulate without swapping original parts.
The other reason is parts supply. A worn component on a modern Rolex is a catalog part for an account holder. The same failure on a 1960s caliber can mean hunting for new old stock or having a part made, so catching wear early is cheaper than repairing damage later.
A mechanical watch can keep running long after its oils have broken down, which is exactly the problem. Without fresh lubrication, metal surfaces start wearing against each other, and what would have been a routine clean becomes a service plus replacement wheels, pivots or a barrel. The bill grows, and on a vintage watch the original parts you lose can matter more than the money.
Water resistance fails more quietly. Gaskets harden with age, so a watch that was sealed on day one may not be sealed in year eight, and you only find out when it fogs.
Delaying also narrows your choices. Once parts are worn rather than just dirty, an independent may need replacement components that only the manufacturer supplies, which can push the watch toward factory service whether you wanted it or not.
Less than people hope. Oils oxidize and migrate with time even when the watch isn't running, and a watch that sits for years can need a service the moment you wind it back up. Wearing or winding it occasionally keeps the lubricants distributed, which helps, but it doesn't stop the clock on them.
For a collection, a simple record helps: when each watch was last serviced, by whom, and what was done. That paperwork also adds value when you sell.
Use three things together: the brand's guidance, the date of the last service if you know it, and how the watch is actually behaving. A modern watch serviced recently and keeping good time can wait. A watch of unknown history, a vintage piece, or anything showing the symptoms above should go to a watchmaker sooner.
If you've just bought a pre-owned watch with no service records, assume it's due. A service on purchase resets the clock, tells you the true condition of the movement, and gives you paperwork for the future.
And if you swim with the watch, separate the two jobs in your head. The movement may be years from needing attention while the gaskets still deserve a yearly pressure test, which takes minutes and costs little.
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Rolex's guidance for current models is roughly every ten years. Older Rolex calibers usually need servicing sooner, and any timekeeping or moisture problem means service now.
Many modern ones are designed to, under normal wear. Older movements and watches worn hard or around water often need attention sooner.
Look for timekeeping that drifts by minutes a day, a much shorter power reserve, a gritty crown or rotor, or any moisture under the crystal.
Yes, eventually. Lubricants age even in a drawer, so a watch that's sat for years may need a service before it's worn again.
Many watchmakers suggest yearly if you swim or dive with the watch, and after any battery change or case opening.