How often a watch needs servicing, and how to tell
Everyone quotes an interval. The interval is the least useful thing about the question, and here is what to look at instead.
The interval everyone quotes
Three to five years for a mechanical or automatic watch. Two to three years for a quartz battery. That is the number you came for and it is the least useful thing on this page.
It describes an average watch in average conditions. Nobody owns an average watch. One worn daily through July heat and a gym bag is not on the same schedule as one worn to weddings and kept in a drawer. No interval published by anyone accounts for that. Treat the calendar as a reminder to look at the thing. What follows is what to look at.
What actually tells you a mechanical watch needs work
None of these is an emergency alone. Two or three together are worth an appointment.
- It has drifted. A watch that held good time for years and now gains or loses noticeably more has changed for a reason.
- The power reserve has shortened. A full wind used to carry it through a weekend off the wrist. Now it stops Sunday morning.
- The seconds hand stutters instead of sweeping.
- The crown feels gritty. Winding is rough rather than smooth.
- Setting the hands or the date takes more force than it used to.
- You can hear it across a quiet room when you could not before.
- Moisture or fogging under the crystal, even once, even briefly.
That last one is the only item here that is urgent. Water inside a case does not wait for an appointment slot. The damage it does is to the parts that cost the most to replace.
Quartz is a shorter conversation
A quartz watch does not need the same overhaul on the same cycle. Its whole maintenance story is the battery and the gasket that goes back in with it.
The risk is a dead cell left sitting in the case. It leaks. What it leaks corrodes the movement around it, turning a battery change into a movement replacement. Change it when the watch stops rather than when you next think of it. And ask whether the caseback was resealed with a fresh gasket, because that is the difference between a watch that survives the next rainstorm and one that does not. Nothing about the watch will tell you which one you got.
Five things owners get wrong
These come up at the counter constantly. Four of them cost people money and one of them saves it.
- It still works, so it is fine. This is the expensive one. A mechanical watch keeps running long after the oils have dried or migrated. It does not stop when it needs a service, it stops years later, after metal has been running against metal in the meantime.
- Running fast means it is worn out. Usually it means the watch is magnetized, from a laptop, a phone case or a magnetic bag clasp. Demagnetizing takes minutes and is not a service. Losing time gradually is the symptom that points at wear.
- My automatic stopped overnight, so it is broken. It was not worn enough to stay wound. Nothing is wrong with it.
- The manufacturer says five years, so five years is the rule. Manufacturers publish guidance, not a warranty condition you are breaching. How the watch has actually been worn matters more than the number in the booklet.
- A battery change is just a battery. It is a caseback opening, which means the water resistance is won or lost at that moment. This is the one on the list that works in your favor to know.
A jeweler who tells you the answer is one of the middle three has just talked themselves out of a service. That is the behavior worth looking for. It is a reasonable thing to ask about directly before agreeing to any work.
What you are paying for
A full movement service means the movement comes apart. Cleaned, worn parts replaced, reassembled, lubricated, regulated, the case resealed and the timing checked afterward. It is not a clean and a polish. The work is slow.
That is also why it is quoted after the case is opened rather than off a list. What is found inside changes the job. The honest version of a quote before anyone has looked is a guess. At Astra Jewelers movement work is coordinated through specialist watchmakers. Battery replacement, link removal, strap fitting, crystal, crown and clasp work are handled at the studio in Upper Montclair. Estimates are free either way.
When to leave it alone
A watch that keeps time, winds smoothly, holds its reserve and is dry under the crystal does not need opening because a number of years have passed. Every caseback opening is another chance for the seal to go back imperfectly, so there is a real cost to looking.
Two exceptions. A watch about to be relied on, before travel or water or before it goes to someone else. And an inherited piece that has sat in a drawer for a decade, because oils dry whether a movement turns or not.
Common questions
How often should a watch be serviced?
General trade guidance is every three to five years for a mechanical or automatic watch and every two to three years for a quartz battery. Most manufacturers publish something in that range. Treat it as a prompt to check rather than a rule, because how a watch is worn matters more than the calendar. The symptoms that actually indicate a problem are a shortened power reserve, a change in timekeeping, a gritty crown, a stuttering seconds hand or any moisture under the crystal.
What happens if I never service my watch?
It keeps running for a while, which is what makes it easy to postpone. The lubricants in a mechanical movement dry out and migrate over time. Once they do, metal runs against metal. The watch does not stop at that point, it stops later, after wear has already happened. Servicing on time costs less than servicing late because the labor is similar either way and the difference is whether worn parts need replacing.
Does a quartz watch need servicing or just a battery?
For most owners a quartz watch needs a prompt battery change and a fresh case gasket rather than a full overhaul. The real risk is leaving a dead battery in the case, because a leaking cell corrodes the movement around it and turns a small job into a replacement. If a quartz watch stops again within weeks of a new battery, the movement is usually drawing too much current and should be diagnosed rather than fitted with another cell.
My watch is running fast. Does that mean it needs a service?
Usually not. A mechanical watch running fast by a large and consistent amount is very often magnetized rather than worn, picked up from a laptop, a phone case or a magnetic bag clasp. Demagnetizing takes minutes and is not a service. A watch losing time gradually is the one more likely to want attention.
Where can I get a watch serviced near Montclair, New Jersey?
Astra Jewelers at 250 Bellevue Ave, 2nd Floor, Montclair, NJ 07043 takes in watch work Monday to Saturday, 10:00am to 6:00pm. Battery replacement, link removal, strap fitting, crystal, crown and clasp work are handled at the studio. Full movement service is coordinated through specialist watchmakers and is quoted after the case is opened. Estimates are free and you are told what was found before any work is agreed.
Is it worth servicing an inexpensive watch?
Often it is not. A jeweler worth using will say so. A full movement service on a quartz watch from a department store can cost more than replacing it outright. An inherited or mechanical piece is almost always worth the work, because the value is not only what it would sell for. That is a conversation to have before the work starts rather than after.