— Why Mainspring
What the work actually involves
Every decision we make about how to run this workshop comes back to the same question: what does a careful, honest repair look like? This page sets out the answers.
Back to Home— At a glance
Six things we do consistently
Written condition reports
Every piece leaves with a plain-language summary of what was found and what was done. Filed with your records or kept for the next service.
Advance costed plans
For any service beyond a standard inspection, we share a written estimate before starting. Nothing proceeds without your confirmation.
Specialist tooling on site
Timing machine, ultrasonic cleaner, caliber-specific tools for chronograph and calendar mechanisms — the equipment for the work we accept.
Published service prices
Three tiers with stated prices in Thai Baht. If additional parts become necessary during a job, you are contacted before they are ordered.
Measured workshop load
We take on a manageable number of pieces so that none sit waiting. Each watch receives the bench time it needs, not a compressed schedule.
Accessible Chonburi location
On Beach Road in Nong Prue, easy to reach from central Pattaya. Drop-in welcome; postal intake available for owners further away.
— In depth
Each benefit, explained
Deep caliber knowledge
Professional expertise
Knowing a movement well means knowing where it typically wears, which lubricants belong where, and what the timing figures should look like when it is running correctly. That knowledge comes from time at the bench working through many examples of the same caliber — not from a manual alone.
At Mainspring the focus has been on Swiss and Japanese mechanical movements across a range of complexity. We are straightforward about the types we take on and those we do not, so owners are not left waiting only to find the work is outside scope.
Equipment matched to the work
Technology & tooling
A timing machine measures rate and amplitude across positions. An ultrasonic cleaner removes dried oil from components that cannot be cleaned effectively by hand. Caliber-specific tools allow chronograph and calendar mechanisms to be disassembled without damage.
These are not unusual tools, but they need to be on the bench and in regular use to matter. We invest in maintaining them so that each service is supported by the right equipment.
Clear, responsive communication
Customer service
Owners receive a reference number when a piece is booked in. We contact you if anything unexpected is found during service, with a note on what was found and what the options are. The watch does not move forward until you respond.
We respond to email and telephone enquiries promptly — typically within one working day. Queries about progress on a piece in service are always welcome.
Transparent pricing structure
Value & pricing
Three service tiers are published with their prices in Thai Baht. The complicated overhaul is quoted individually because the work varies by caliber, but the estimate is always shared and confirmed before we start.
No hidden charges are added after the fact. If a part needs replacing, we note it separately with the cost. The final invoice matches the estimate unless a change was discussed and agreed along the way.
Measurable, documented outcomes
Results & outcomes
Timing figures are recorded before service begins and again once work is complete. This makes the improvement visible rather than assumed. The final report includes both sets of numbers so you can see the change.
If the movement cannot reach a satisfactory rate, we say so rather than returning it with a vague note. Occasionally a worn part limits the achievable accuracy — and owners deserve to know that before deciding on further work.
— Comparison
Mainspring vs. typical alternatives
| Feature | Mainspring | Typical Provider |
|---|---|---|
| Written condition report with every service | ||
| Advance costed plan before large jobs | ||
| Timing figures recorded before and after | ||
| No work proceeds without owner confirmation | ||
| Published prices for all standard tiers | ||
| Postal intake for owners outside Chonburi | ||
| Complicated caliber overhaul capability |
— What sets us apart
Distinctive features of the service
Pre-and-post timing comparison
We measure rate before opening the movement and again on completion. Both sets of figures appear in your service record — a tangible record of what the service achieved.
Permanent service archive
Records of work done at Mainspring are retained. If you return the watch years later, we can pull up what was serviced, replaced, and measured — useful for understanding the piece's history.
Plain-English summaries
Condition reports use plain language, not trade terminology. If a component is worn, the report says what that means in practice — not just the part name and a code number.
Insured postal intake
Owners outside the Chonburi area can send their piece by insured courier. We confirm receipt, provide a reference number, and return the watch by the same method once service is complete.
— Milestones
The record so far
12+
Years at the bench
800+
Movements serviced
40+
Calibers worked on
100%
Jobs with written records
Watchmakers Guild of Thailand
Associate member since 2017. Regular attendance at regional technical exchanges.
WOSTEP-Aligned Training
Foundational training completed through a WOSTEP-aligned programme, covering Swiss ebauche servicing methodology.
Pattaya Business Directory
Listed as a recommended specialist repair service in the 2024 Eastern Seaboard trade directory.
— Ready to begin
A clear picture of your watch's condition costs less than you may think
The Inspection & Light Service starts at ฿3,900 and ends with a written condition report. No obligation to proceed further.