Rolex 4030 is a calibre by Rolex.
This self-winding chronograph movement bases on the calibre El Primero by Zenith (Calibre Zenith 400) and has been modified by Rolex.
The fast-oscillating Zenith calibre has been clocked down from 36,000 A/h to 28,800 A/h and has been provided with a Breguet hairspring and with microstella screws.
It was used in the model Rolex Oyster Perpetual Cosmograph Daytona till 2000. Afterwards it was replaced by the Rolex-own development Rolex 4130.
- Self-winding movement, bi-directional winding
- Chronometer certificate (COSC)
- Escapement Stone lever
- Glucydur balance wheel with microstella screws
- Kif shock protection for balance wheel and escape wheel
rolex_4030.txt · Last modified: 02.12.2022 20:38 by 127.0.0.1