What Watch Servicing Actually Costs — and When You Really Need It

The Running Cost Nobody Puts on the Price Tag

A mechanical watch is a machine with a few hundred parts, most of them moving, several under constant tension, all lubricated with oils that degrade. It is closer to a car than to a phone in this respect, and like a car it has a running cost.

That cost is almost never discussed at the point of sale. Someone buying their first serious watch reasonably budgets for the watch and does not budget for the fact that keeping it running will cost a meaningful fraction of a modest watch's price every few years.

This is not an argument against mechanical watches. It is an argument for factoring the cost in, because it materially changes which watch is the right purchase. A watch bought at the very top of a budget with servicing unaccounted for becomes a watch that sits in a drawer unserviced, which is the worst outcome for both the object and the owner.

It is also a strong argument for buying pre-owned with recent service history, which our pre-owned guide covers: a watch serviced last year has its next major cost pushed years into the future, and that is worth real money at the point of purchase.

What a Full Service Actually Involves

The phrase covers a specific sequence of work, and knowing it helps you judge a quote.

The watchmaker disassembles the movement completely, down to individual components. Everything is cleaned, usually in an ultrasonic machine with successive solvent and rinse baths, to strip degraded oil and microscopic debris.

Parts are inspected under magnification for wear. Pivots, jewels, the mainspring and the escapement components are the usual candidates for replacement. A mainspring that has taken a set no longer delivers even torque, and worn pivots destroy the jewels they run in.

The movement is reassembled and lubricated, with different oils and greases at different points. This is the part that most rewards skill: too much oil migrates, too little accelerates wear.

It is then regulated across multiple positions and temperatures to bring timekeeping within specification, and the result is usually shown on a timing machine printout. Ask for it.

Separately the case is dealt with: gaskets replaced at the crown, caseback and pushers, the crystal checked, and water resistance pressure-tested. On a diving watch this is not optional.

What should be optional, and frequently is not unless you say so, is case refinishing — polishing and re-brushing. Say no unless you specifically want it.

Brand Service Centre or Independent Watchmaker

This is the real decision, and neither answer is universally right.

Brand service centres have the factory parts supply, which for modern in-house movements can be decisive — several major brands restrict parts to their own network, and an independent may simply be unable to source a component. They have model-specific tooling and training, and the work is guaranteed. Turnaround is often slow, measured in months rather than weeks, and communication tends to be minimal. They also work to a policy: parts get replaced when a datasheet says so, and cases get refinished as standard.

Independent watchmakers are usually faster, usually cheaper, and almost always more communicative — you can talk to the person doing the work, agree what will and will not be done, and see the old parts. Quality ranges enormously, from world-class restorers to people who should not be opening watches, so reputation matters more here than with a brand centre. Parts availability is the constraint.

A reasonable rule of thumb: modern, in-warranty, or complicated in-house movements go to the brand. Vintage, simple, and third-party movements — ETA, Sellita, Valjoux and their relatives — go to a good independent, who will do a better job of preserving what makes the watch worth owning.

For either, get the quote in writing before work starts, including what happens if additional problems appear once the movement is open.

Reading the Symptoms

Service on evidence rather than on a date, with one exception. The signs a movement genuinely needs attention:

Timekeeping has drifted well outside its normal range, or has become erratic rather than consistently fast or slow. A consistent deviation can often be regulated; erratic behaviour suggests something mechanical.

Power reserve has shortened. A watch that used to run through the weekend and now stops overnight is telling you the mainspring or going train needs work.

The winding feels wrong — gritty, notchy, or unusually stiff.

A complication misbehaves. A chronograph that stutters on reset, a date that changes at the wrong time or crawls over an hour, a rotor that grinds.

Moisture inside the crystal. Stop wearing it and get it opened immediately; this is the one symptom that turns into corrosion damage while you wait.

The exception to symptom-led servicing is water resistance. Gaskets are rubber and they harden and shrink with age and temperature cycling whether or not the watch is running well. If you swim with a watch, have the seals replaced and pressure-tested every couple of years regardless of how the movement feels.

Keeping the Bill Down Without Cutting Corners

A few habits genuinely reduce lifetime cost.

Buy with service history. A recent service documented with an invoice is worth paying for, and is the cheapest servicing you will ever buy.

Do not over-service. A well-running watch opened unnecessarily gains nothing and risks damage. The interval on the manufacturer's card is a conservative recommendation, not a law.

Deal with symptoms early. Running a movement on degraded oil is what turns a routine service into a parts replacement.

Keep it away from magnets — laptop speakers, tablet covers, handbag clasps. Magnetisation makes a watch run wildly fast and is usually fixed in minutes with a demagnetiser rather than by a service.

Change quartz batteries promptly and never leave a dead one in the case.

Rotate your watches if you own several, so no single one takes all the wear — though a watch left completely still for years has its own problem, as the oils settle and congeal.

And consider the movement when you buy. A watch on a widely used third-party calibre can be serviced by any competent watchmaker with readily available parts, for decades. That is a genuine practical advantage, and one reason brands like Tissot and Longines, both available through First Class Watches, are sensible long-term propositions rather than merely affordable ones.

Frequently Asked Questions