Rolex 4130

Calibre 4130 is an automatic chronograph movement by Rolex.

Overview

Self-winding chronograph movement, rotor bi-directional winding, 28,800 A/h, 44 jewels, Kif shock protection, power reserve 72 hours.

The movement has been developed for the model Cosmograph Daytona, in which a modified El Primero chronograph movement by Zenith (called Rolex 4030) had been used before.

This was the first movement to use Rolex's Parachrom hairspring alloy when introduced in 2000.

Description: Self-winding movement, bi-directional winding Escapement: Stone lever Yoke winding system Parachrom blue-Breguet hairspring (since ca. 2005) Kif shock protection for balance wheel and escape wheel Chronometer certificate (COSC) Column wheel calibre Functions: Hours, Minutes, small seconds, date Chronograph Hacking seconds Data: 13½ lignes D 30.5 mm, H 6.5 mm 44 jewels 28,800 A/h Power reserve 72h Production period: Since 2000