Mainspring
Row
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Watch movement components arranged on a bench

Workshop services

Three services, each scoped to what the watch needs.

A short assessment, a full bench service, or a multi-stage complication rebuild — the right path depends on the movement and what the owner wants to know first.

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How the bench works

Every service follows the same underlying method.

Whatever the service type, the same principles apply at Mainspring Row: written scope before work starts, photography at each key stage, no additional charges without prior agreement, and a written report that leaves with the watch. The calibre and its condition determine which service applies; the approach to communication and documentation does not change.

Owners who are new to bench servicing are encouraged to start with a Condition Survey. It carries the lightest commitment and provides the clearest picture of what the movement actually needs.

1

Intake and written scope

Case condition is noted, movement is examined under magnification, and the service scope is written up for the owner's agreement before anything proceeds.

2

Bench work with photography

Service work is carried out with photographs taken at opening and key disassembly stages. If additional findings arise, work pauses until the owner agrees.

3

Regulation and on-test period

Movement is regulated in six positions on the timing machine and runs on test for one week before collection is arranged.

4

Collection with written report

Watch is collected with a written report covering all work done, parts replaced, timing machine readings and any notes relevant to the owner.

Watchmaker examining movement under magnification

Service 01

Condition Survey & Water Resistance Check

A short, low-commitment appointment for owners who are not yet sure what their watch needs. The watchmaker opens the case, examines the movement under magnification, measures the current rate on a timing machine, checks the gaskets and pressure-tests the case to its stated rating, and writes up what was found. Nothing is dismantled and no work proceeds without a separate agreement. Suitable before a purchase, after a knock, or simply as a check every couple of years.

  • Written survey with photographs
  • Rate and amplitude readings
  • Water resistance test result
  • Plain-language options list ranked by urgency

RM 480

per watch

2–3 working days

typical turnaround

Best for: Pre-purchase assessment, post-impact check, routine condition review.

Arrange a Survey

Service 02

Standard Mechanical Service

The workshop's core bench service for three-hand mechanical watches. The movement is fully disassembled, cleaned in a multi-stage bath, worn pivots and jewels are inspected, the mainspring is renewed, lubrication is applied to specification, and the reassembled calibre is regulated in six positions and rested on test for a week before it returns to the owner. The case and bracelet are hand-cleaned, gaskets renewed, and resistance re-tested where the case allows.

  • Full disassembly and multi-stage ultrasonic clean
  • Mainspring and gasket renewal
  • Six-position regulation with one-week on-test
  • Case and bracelet hand-clean
  • 12-month workmanship coverage on the work carried out

RM 1,540

per watch

4–6 weeks

typical turnaround

Best for: Three-hand mechanical watches due for a scheduled service or showing signs of rate drift.

Book a Service
Movement components cleaned and laid out before reassembly
Calendar module open on the watchmaker's bench

Service 03

Complication Rebuild Project

A longer project for calendars, moon phases, alarm calibres and other multi-module watches, where the added works need individual attention and often hand-made or hand-adjusted parts. The route typically covers module strip-down, correction of a jumping or drifting date change, moon phase re-setting, replacement or refinishing of missing hands and markers, and full regulation once the whole assembly is back together. The owner receives a written proposal with photographs first, and each stage requires written agreement before it begins.

  • Written proposal with photographs before work starts
  • Module strip-down and individual inspection
  • Parts sourcing or fabrication as needed
  • Staged photography throughout the project
  • Final regulation and written project record

RM 4,700

starting price

10–16 weeks

typical project scope

Best for: Annual/perpetual calendars, moon phase watches, alarm calibres and other complication modules needing individual attention.

Start a Project

Decision guide

Which service fits the situation?

What you need Survey
RM 480
Standard Service
RM 1,540
Rebuild
RM 4,700
Understand watch condition before committing
Pre-purchase assessment
Three-hand movement due for full service
Calendar jumping unreliably
Moon phase drifted out of sync
Rate and amplitude readings
Case pressure test
Written report with photographs

Not sure which fits? A Condition Survey is always a safe first step — it carries no obligation and covers the diagnostic that informs the rest.

Across all services

Technical standards that apply to every job

Four-stage ultrasonic cleaning

Movement parts are cleaned in a four-stage bath with fresh fluid per batch. No commingling between calibres.

Manufacturer-spec lubricants

Moebius and Nye products applied to the calibre's documented lubrication points. No substitutions or expired oils.

Six-position regulation

Rate measured in all six standard positions. Results logged and included in the service report that leaves with the watch.

Dry-air pressure testing

Cases tested to stated rating after gasket renewal using a calibrated dry-air tester. No water used in the test.

Secure, logged storage

Watches not on the bench are locked in a humidity-controlled cabinet and logged at the start of each working day.

Written record on every return

The report lists parts replaced, measurements taken, test results and the watchmaker's notes — formatted to keep with the watch.

Pricing

Transparent prices, no additions without agreement

External parts — crystals, pivots, hands — are quoted separately before any are ordered. No bench fees or storage charges added at collection.

Survey

RM 480

per watch · 2–3 days

  • Movement inspection under magnification
  • Timing machine rate and amplitude
  • Water resistance test
  • Written report with photographs
Arrange
Most common

Standard Service

RM 1,540

per watch · 4–6 weeks

  • Full disassembly and ultrasonic clean
  • Mainspring and gasket renewal
  • Six-position regulation
  • One week on-test
  • 12-month workmanship coverage
Book

Complication Rebuild

RM 4,700

starting · 10–16 weeks

  • Written proposal before work begins
  • Module strip-down and rebuild
  • Parts sourcing or fabrication
  • Staged photography throughout
  • Final written project record
Start project

Ready to bring it in?

Send a message and we will find the right service together.

Drop a note with the watch's brand and reference if you know it, and the watchmaker will suggest the most suitable starting point.

Get in Touch