What Is a Watch Movement Accuracy: How to Test and Improve It
Author: Funny Items
Release time: 2026-08-20 00:52:02
View number: 23
Precision Matters
Watch movement accuracy determines how close your watch stays to the correct time. Here is how to test and improve it.
Accuracy Ratings
| Movement | Rated Accuracy | Real World |
|---|---|---|
| NH35 | -20 to +40 sec/day | +-10 sec/day regulated |
| NH34 | -20 to +40 sec/day | +-10 sec/day regulated |
| VK63 | +-15 sec/month | +-10 sec/month |
How to Test
- Set the watch to an accurate time reference
- Wear it for 24 hours
- Compare the time
- Note the difference
How to Improve
- Regulate adjust the regulator arm
- Position try different wearing positions
- Magnetism keep away from magnets
- Service professional cleaning every 5-10 years