Why Mainspring
What Makes the Difference on a Workshop Bench
Skill takes years to build; good habits take discipline to maintain. Here's how Mainspring approaches both.
Back to HomeAt a Glance
Six Things That Matter Here
Every workshop makes claims. These are the specifics behind ours.
15+ Years on the Bench
Founded in 2009. The depth of experience shows in how a job is diagnosed as much as how it's completed.
Every Job Is Documented
Readings, parts, and findings are noted and travel with the watch. You leave with a record, not just a promise.
Calibrated Equipment
Timing machines and pressure testers are maintained and used correctly, not decoratively displayed.
Clear Scope, Agreed First
For complex jobs, we confirm what will be done and what it costs before work begins. Changes are discussed, not presented on collection.
Responsible Parts Approach
Original components are kept where possible. Replacements are sourced carefully and logged — not substituted quietly.
Work at the Right Pace
Jobs are scheduled to fit the time the work actually needs. A complication service cannot be safely compressed into a short slot.
Expertise
Depth Built Over Years, Not Months
The watchmakers at Mainspring have worked through thousands of movements across brands and decades. That background shapes how a job is approached from the first inspection — which tolerances to check, which signs to look for, where the common failure points lie.
- Movement-specific knowledge across Swiss and Japanese calibres
- Complication servicing handled only by the watchmaker with the relevant depth
- Vintage movement experience where appropriate parts are available
3,400+
Service records completed since 2009
Calibrated
All timing and pressure instruments actively maintained
Equipment
Instruments That Give Reliable Readings
A timing machine gives useful information only when it's in good working order. The same applies to the pressure equipment used in water resistance checks. At Mainspring, the instruments are part of the quality standard — not an afterthought.
- Multi-position timing measurement before and after regulation
- Pressure testing equipment appropriate for case type
- Ultrasonic cleaning for appropriate components
Communication
No Surprises on Collection
A watch that comes back from service with work the owner didn't expect — or a bill they weren't prepared for — is a failure of communication, not just cost management. We take that seriously. Every job that touches the base price is discussed before hands touch the movement.
- Pre-work confirmation for complication servicing
- Unexpected findings reported before proceeding
- Written service summary ready on collection
Written
Every job gets a service record to take home
฿4,800
Water resistance service starting price — clear, fixed
Value
Pricing That Reflects the Work
Our three services have clear starting prices. Complication work is confirmed in full before it begins. There is no hourly ambiguity or hidden administration charge added at the end.
- Published prices for all three services
- Complication scope confirmed before bench time begins
- No padding or unnamed extras
The Difference
Typical Workshop vs Mainspring
A straightforward comparison of how jobs are commonly handled, and how we handle them.
| Area | Typical Workshop | Mainspring |
|---|---|---|
| Service Records | Verbal summary only | Written report with every job |
| Cost Transparency | Final bill on collection | Scope confirmed before work starts |
| Timing Measurement | Single reading or estimated | Multi-position, before and after |
| Water Resistance | Assumed after new gasket | Pressure tested where design allows |
| Parts Handling | Generic substitution common | Original kept; replacements logged |
| Complication Work | Handled by general technician | Assigned to specialist watchmaker |
What Sets Us Apart
Four Things You Won't Find Everywhere
Pressure Test with Every Seal Service
Not all workshops with the equipment use it on every job. We do, and the result is noted in the service report.
Before & After Timing Sheet
For regulation work, you receive an actual printed or digital timing record. The improvement is shown, not claimed.
Consistent Watchmaker Assignment
Complex pieces are handled by the watchmaker with the relevant specialty, not whoever has capacity that day.
Bangkok Climate Awareness
We advise based on real local conditions — humidity, temperature cycling, rainy season — not generic service intervals from a European manual.
Milestones
A Record Built Gradually
Sixteen years of work leaves a trail. These are some of the markers along it.
WOSTEP Trained
Watchmakers Certification via WOSTEP-affiliated programme
3,400+
Watch service records completed and filed
4.8 / 5
Average owner rating across 280+ workshop reviews
Since 2009
Continuously operating in Chatuchak, Bangkok