A mechanical watch is a tiny machine with many moving parts working together. Like any machine, it needs maintenance. A watch service, often called an overhaul, is the deep maintenance that keeps an automatic or mechanical watch accurate and healthy for decades.
This guide explains what a full watch service includes, the signs your watch needs one, how often to service it, and what affects the cost.
What Is a Watch Service?
A full watch service involves disassembling the movement, cleaning every part, inspecting for wear, replacing worn parts, lubricating, reassembling, and regulating the watch for accuracy. It often includes servicing the case, crown, and gaskets as well.
A watch service is different from a battery change. Battery changes are quick maintenance for quartz watches. A service is a complete overhaul, mostly for mechanical watches.
Why Watches Need Service
Mechanical watches rely on lubricants that break down over time. As oils dry out or thicken, friction increases, parts wear faster, and accuracy suffers. Dust and moisture can also get in as gaskets age. Regular service prevents wear from turning into damage.
Signs Your Watch Needs Service
- Running noticeably fast or slow
- Stopping unexpectedly, even when wound or worn
- Short power reserve - doesn't run as long when off the wrist
- Grinding or rough feel when winding
- Date doesn't change cleanly
- Chronograph functions stick or don't reset
- Moisture or fog under the crystal
- Crown feels loose or won't screw down
- It's been many years since the last service
What a Full Watch Service Includes
1. Evaluation
The watch is examined, timed on a timing machine, and checked for visible issues.
2. Case and bracelet removal
The movement is removed from the case. The bracelet is removed for separate cleaning.
3. Movement disassembly
The movement is fully taken apart.
4. Cleaning
Parts are cleaned to remove old lubricants, dirt, and debris.
5. Inspection and parts replacement
Each part is inspected under magnification. Worn or damaged parts, such as mainsprings, gaskets, crowns, or stems, are replaced as needed.
6. Reassembly and lubrication
The movement is reassembled, with appropriate lubricants applied at specific points.
7. Regulation
The watch is regulated for accuracy in different positions.
8. Case service
The case is cleaned, gaskets are replaced, and the crystal is checked. Polishing may be offered.
9. Water resistance testing
If the watch is rated for water resistance, it can be tested.
10. Final testing
The watch is tested over time to confirm accuracy and power reserve.
How Often Should a Watch Be Serviced?
Manufacturer recommendations vary. Many suggest servicing mechanical watches every several years. Factors that affect timing include how often you wear the watch, how it's used, and its condition. If the watch shows any signs listed above, service it sooner.
Quartz watches also benefit from occasional service, especially gasket replacement and movement cleaning, though less frequently than mechanical watches.
Watch Service Cost Factors
We don't publish one price for all watches. Cost depends on:
- Movement type - quartz, automatic, or manual wind
- Complications - chronographs, calendars, and other functions add complexity
- Brand and parts availability
- Condition - rust, water damage, or broken parts increase work
- Case work - polishing, crystal, and crown replacement
- Water resistance testing
We'll evaluate your watch and give you a clear estimate before beginning.
Is It Worth Servicing an Older Watch?
Often, yes, especially if it has sentimental value. A family watch can run for generations with proper care. In some cases, parts may be hard to source. We'll tell you honestly what's possible.
Caring for Your Watch Between Services
- Wind manual watches consistently.
- Wear automatics regularly or use a watch winder.
- Avoid strong magnets.
- Avoid extreme heat, such as a hot car in an Arizona summer.
- Rinse with fresh water after salt or chlorine exposure if water resistant.
- Don't operate the crown or pushers underwater unless the watch is designed for it.
Watch Service vs. Watch Repair
Watch repair addresses a specific problem: a broken crystal, a band, a battery, a stem. Watch service is comprehensive maintenance. Sometimes a repair reveals the need for service. Learn about our watch repair.
Selling a Watch Instead?
If you have a watch you no longer wear, we also buy watches. Learn about selling watches.
Watch Service in Mesa
Brilliant Jewelry is a fourth-generation, family-owned jeweler at 1237 S Val Vista Dr Ste 204, Mesa, AZ 85204. We evaluate watches honestly, explain what yours needs, and won't sell you service it doesn't need.
Book a watch service evaluation or call or text (480) 331-8652.