IS 11562 : 1985 Specification for O-rings for Wrist Watch Crowns and Push Buttons
| UDC 621.762-84 : 681.114.8.036.4 | PGD 23 |
|
| Reaffirmed 2018 |
1 Scope
Covers the dimensional and other requirements of O-rings forwater-resistant type crowns (as crown washers) and push-buttons forwrist watches.