The calibre Rolex 3131 is a self-winding movement with bi-directional winding, 28,800 A/h, 31 jewels, Glucydur balance wheel with Microstella screws and Kif shock protection.
The Rolex 3131 is a new version of the Calibre Rolex 3130 with Parachrom blue-Breguet hairspring. In contrast to the calibre Rolex 3135 it lacks the date mechanism.
It is used in the Milgauss Ref. 116400.
- Self-winding movement, bi-directional winding
- Chronometer certificate (COSC)
- Escapement Stone lever
- Glucydur balance wheel with Microstella screws for precision adjustment
- Kif shock protection
- Since 2007
rolex_3131.txt · Last modified: 02.12.2022 20:38 by 127.0.0.1