Rolex 72C

Last updated: July 28, 2025

Brand

Rolex

Caliber Number

72C

Production Period

1940s – 1960s

Lignes

13”’

Diameter

29.5 mm

Height

6.95 mm

Power Reserve

Unconfirmed

Frequency

18,000 A/h (2.5 Hz)

Jewels

Escapement

Swiss Lever

Anti-Shock Device

Rolex Shock-Resisting

Hand Count

7 (Hour, Minute, Central Chrono Second, Central Date Pointer, 3x Sub-dial hands)

Manufacture Region

Unconfirmed

Functions

Chronograph (12-hour, 30-minute), Triple Calendar (Day, Date, Month)

Rolex 72C Description

The Rolex Caliber 72C is a manual-wind, triple-calendar chronograph movement based on the Valjoux 72C. It was heavily modified and finished by Rolex to power their rare and highly collectible “Dato-Compax” or “Jean-Claude Killy” models from the 1940s to 1960s. This movement is a prime example of a high-grade, complicated column-wheel chronograph from the mid-20th century, combining a 12-hour chronograph with displays for the day, date, and month.