NEN-ISO 3159
Timekeeping instruments - Wrist-chronometers with spring balance oscillator
active, Most Current
| Organization: | NEN |
| Publication Date: | 1 December 2009 |
| Status: | active |
| Page Count: | 13 |
| ICS Code (Watches): | 39.040.10 |
scope:
This International Standard lays down the definition of the term "chronometer", describing the categories, the test programme and the acceptable minimum requirements for wrist-chronometers.
Document History
NEN-ISO 3159
December 1, 2009
Timekeeping instruments - Wrist-chronometers with spring balance oscillator
This International Standard lays down the definition of the term “chronometer”, describing the categories, the test programme and the acceptable minimum requirements for wrist-chronometers.