Watchmaker tools

Services

Three things we do well.

hairspringf offers three repair services for mechanical watches. Each has a clear scope, a published starting price, and a realistic turnaround time — worked by hand in our Bangkok workshop.

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Our approach

How the work proceeds.

All jobs follow the same sequence regardless of scope. The watch is assessed under magnification and a written quote is prepared. Once the owner approves, work begins. The watchmaker who accepts the piece carries it through to completion — no handoffs between technicians during the job.

We aim to use original manufacturer parts where these are available at reasonable cost. When they are not, we discuss alternatives with the owner before ordering anything. Replaced parts are returned in a labelled envelope.

Movement work concludes with measurement on the timegrapher: rate, amplitude, and beat error are noted in multiple positions. Cases opened for overhaul are pressure tested before returning to the owner. The service documentation travels with the watch.

If anything unexpected emerges during the repair — an additional worn component not visible at assessment — we contact the owner immediately rather than proceeding without approval.

Strap and bracelet work

Service 01

Strap & Bracelet Refresh and Sizing

From ฿4,400 · Typically same day

Cleaning, resizing, and refitting of leather, rubber, or metal bracelets, with worn spring bars renewed as needed. Suited to owners who want their watch to sit properly on the wrist without committing to a full service. The clasp or buckle is checked for security and the bracelet is cleaned between the links.

Spring bar replacement where worn or bent
Link removal or addition for wrist fit
Clasp and buckle function check
Ultrasonic bracelet cleaning (metal bracelets)

How it works

1 Bring the watch in or send photos. We confirm the work scope and quote.
2 Strap or bracelet work is carried out — spring bars, links, clasp, clean.
3 Watch is returned same day or following morning in most cases.
Enquire about this service

Service 02

Chronograph Servicing & Calibration

From ฿11,000 · 3–4 weeks typical

Servicing of the added chronograph works alongside the base movement. Suited to multi-function pieces whose stopwatch action has grown stiff, whose pushers do not return crisply, or whose minute recording sub-dial has drifted. Includes function testing across all sub-dials and a timing review once reassembled.

Base movement and chronograph mechanism disassembly and clean
Column wheel or cam inspection and adjustment
Pusher function and reset behaviour checked
Sub-dial totaliser function confirmed
Timegrapher measurement and regulation on completion

How it works

1 Assessment and written quote covering base movement and chronograph mechanism.
2 Full disassembly, ultrasonic clean, inspection of wear, lubrication and reassembly.
3 Functional testing, timegrapher measurement, service documentation prepared.
4 Collection or collection notification at three to four weeks from drop-off.
Enquire about this service
Chronograph movement
Watch case refinishing

Service 03

Complete Overhaul & Case Refinish

From ฿34,500 · 4–8 weeks typical

A full movement overhaul combined with hand refinishing of the case and bracelet. Suited to owners restoring a flagship watch they intend to keep and wear for the long term. Crystal is renewed, gaskets and seals are replaced, and water resistance is restored by pressure test. Case and bracelet surfaces are worked by hand to the original finishing lines.

Full movement strip, ultrasonic clean, and inspection
Worn components replaced and documented
Case and bracelet hand-refinished to original surface lines
Crystal, gaskets, and crown seals renewed
Dry-air pressure test to rated depth on completion
Timegrapher figures measured and recorded

How it works

1 Assessment: movement condition, case finish quality, crystal, gasket condition noted.
2 Written quote covering all work scope — owner approves before disassembly.
3 Movement overhaul: disassembly, clean, inspect, replace worn parts, assemble, regulate.
4 Case and bracelet hand-refinished. Crystal, gaskets, and crown seal fitted.
5 Pressure test, final timing check, service record prepared. Collection advised.
Enquire about this service

Which service

Choosing the right scope.

Strap Refresh Chronograph Service Full Overhaul
Movement not opened
Movement serviced
Chronograph mechanism addressed On request
Case and bracelet refinishing
Crystal, gaskets, crown seals renewed
Water-resistance pressure test
Starting price ฿4,400 ฿11,000 ฿34,500
Typical turnaround Same day 3–4 weeks 4–8 weeks

Not sure which applies? Bring the watch in for a free assessment. We will look at the condition and tell you honestly what the movement, case, and bracelet each need — without any obligation to proceed.

Across all services

Standards that apply to every job.

Written quote required

No work begins without a written, owner-approved quote. Assessments are provided at no charge.

Parts returned

Replaced components are cleaned and returned in a labelled envelope with the watch unless disposal is requested.

Six-month cover

Labour carries a six-month cover period. Issues traceable to our work within that window are addressed without charge.

Service documentation

Every completed job is accompanied by a written service record noting work performed, parts replaced, and timing figures.

Pricing

Published starting prices.

Prices shown are starting figures; final cost depends on movement complexity and parts required. A written quote is provided before work begins.

Service 01

Strap & Bracelet Refresh

฿4,400

Starting price

  • Spring bar renewal
  • Link adjustment
  • Clasp check
  • Bracelet clean
  • Same-day turnaround
Enquire
Popular

Service 02

Chronograph Servicing

฿11,000

Starting price

  • Base movement service
  • Chronograph mechanism service
  • Sub-dial function test
  • Timegrapher measurement
  • 3–4 weeks turnaround
Enquire

Service 03

Complete Overhaul

฿34,500

Starting price

  • Full movement overhaul
  • Hand case & bracelet refinish
  • Crystal and gasket renewal
  • Water-resistance test
  • 4–8 weeks turnaround
Enquire

Book your repair

Not sure which service fits? We will work it out together.

Bring your watch in or send us a message. The assessment is free. We look at what the watch needs, give you a written quote, and proceed only on your approval.

Get a Free Assessment