The short answer
A mechanical watch is a small machine, and machines need maintenance. Skip it long enough and the repair bill stops being routine.
For most buyers the number that matters is the complete service, a full movement overhaul. Budget roughly $150 to $500 at a good independent, $700 to $1,200 at most Swiss brands' own centers, and well past $2,000 once you get into chronographs, in-house complications, and the high end of the trinity. Here is what drives the number, and why it should shape what you buy pre-owned.
A service is not a repair. It is scheduled maintenance, and the cost is part of the true price of owning the watch.
All images in this post are AI-generated and may not perfectly represent the actual watch references discussed. They are intended for illustration only.
What a service actually is
A complete service is a full overhaul, not a battery swap. The watchmaker disassembles the movement entirely, cleans every part, replaces worn components and gaskets, re-lubricates, reassembles, regulates the timing, and pressure-tests the case.
A complete service is a full teardown and rebuild of the movement, then a regulation and a pressure test. A Speedmaster's caliber 3861 runs roughly $500 to $900 at Omega.
The reason it matters is invisible. Lubricants dry out and degrade over years, and a dry movement runs metal on metal. Watchmakers compare it to engine oil: the watch keeps running for a while, then the wear that was building silently turns an $800 service into a $2,000 parts job.
What it costs, by brand
Prices below are for a standard complete overhaul through the brand's own service network. Parts like a cracked crystal, a worn bezel, or a new crown are quoted separately. Independents typically run well under these figures.
| Brand | Typical complete service | Notes |
|---|---|---|
| Tudor | ~$450 to $800 | Shares Rolex's service network; reasonable for the tier |
| Omega | ~$500 to $1,200+ | Co-Axial calibers sit at the higher end |
| Rolex | ~$700 to $1,200 | Chronographs and older pieces climb past $1,500 |
| Cartier | ~$600 to $1,200 | Quartz models are cheaper; mechanical Santos/Tank higher |
| Breitling / IWC | ~$700 to $1,400 | In-house chronographs at the top of the range |
| Audemars Piguet | $1,500 and up | Royal Oak bracelet finishing is labor-intensive |
| Patek Philippe | ~$2,000 to $50,000+ | Time-only at the low end; grand complications at the top |
The pattern is simple. The more complication and hand-finishing in the watch, the more expensive it is to take apart and put back correctly. A time-only steel watch is cheap to maintain. A perpetual-calendar chronograph in precious metal is not.
How often you actually need one
Modern intervals are longer than the old five-year rule of thumb. Most current Swiss brands recommend service every 5 to 10 years, and Rolex's modern calibers are built around a roughly 10-year cycle.
Wear the watch, but watch for the signs: moisture under the crystal, a fast-draining power reserve, or a chronograph that hesitates.
Don't wait for a calendar date if something feels wrong. The signals that a watch needs attention sooner: condensation under the crystal, a power reserve that drains far faster than spec, time that drifts well beyond the movement's rated accuracy, or a crown and pushers that feel gritty. Any of those means book it in.
Manufacturer or independent?
Both are legitimate, and the choice has real trade-offs.
- Brand service center. Genuine parts, factory specs, and documentation that supports resale. Slower, pricier, and some brands replace parts you might have preferred to keep original on a vintage piece.
- Independent watchmaker. Often a third to half the price, faster, and a skilled independent can be gentler on vintage originality. Verify they are certified and can source genuine parts before handing over anything valuable.
For a modern in-warranty watch, use the brand. For an out-of-warranty daily-wear piece, a trusted independent is often the smarter spend.
Why this matters before you buy
Service cost is part of the real cost of ownership, and service history is part of a watch's value.
A recent service receipt from a reputable watchmaker is worth asking for, and worth paying a little more for.
Two practical rules when buying pre-owned. First, factor the next service into your budget: if a watch is eight years into a ten-year cycle, a four-figure bill is coming, and that should affect the price you pay. Second, favor watches with recent, documented service from a reputable source. A dated receipt tells you the movement is healthy and resets the maintenance clock. The reference still drives value most, which is the throughline of our 2026 value map, but service history is the detail that protects it.
The dealer take
The cheapest watch to own is rarely the cheapest watch to buy.
Maintained on schedule, a good mechanical watch runs for generations. That is the deal you are actually buying into.
Before you fall for a reference, learn what it costs to keep running and when its next service is due. A time-only steel watch from a mainstream brand is cheap to live with. A complicated trinity piece is a genuine commitment. Neither is wrong, but only one of them is the watch you think it is at the sticker price.
Browse authenticated pre-owned watches at 5dwatches.com, and ask us about service history on anything that catches your eye.