IS 9673 : 1980 Specification for Crown for Wrist Watch Case
| UDC 681.114.8.036.4 | PGD 23 |
|
| Reaffirmed 2018 |
1 Scope
Covers the dimensional and other requirements of the followingtwo types of crowns or wrist watch case:
Type A - for non-water-resistant wrist watch
Type B - for water-resistant wrist watch