What Is a Watch Movement Beat Error: How to Measure and Fix It
Author: Funny Items
Release time: 2026-08-20 05:13:54
View number: 16
The Timing Issue
Beat error measures how symmetrical the balance wheel swing is. High beat error causes uneven ticking.
What Is Beat Error?
- Low beat error less than 0.5ms = good
- High beat error more than 1.0ms = needs adjustment
- Ideal less than 0.2ms = excellent
How to Measure
- Use a timegrapher or timing app
- Place watch on microphone
- Read the beat error value
- Compare to ideal range
How to Fix
- Adjust the regulator arm slightly
- Move toward the direction that reduces error
- Test again after each adjustment
Frequently Asked Questions
Can I fix beat error at home?
Basic adjustments are possible with a timegrapher. For significant errors, see a professional.