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Rolex 722-1
Last updated: July 28, 2025
Brand
Caliber Number
722-1
Production Period
1965 – 1967
Lignes
13”’
Diameter
29.5 mm
Height
6.7 mm
Power Reserve
Unconfirmed
Frequency
18,000 A/h (2.5 Hz)
Jewels
17
Escapement
Swiss Lever
Anti-Shock Device
Kif Flector
Hand Count
6 (Hour, Minute, Central Chronograph Second, 3x Sub-dial hands)
Manufacture Region
Unconfirmed
Functions
Chronograph with 12-hour and 30-minute counters, Small Seconds
Rolex 722-1 Description
The Rolex Caliber 722-1 is a manual-wind column-wheel chronograph, representing a significant Rolex-modified version of the Valjoux 72. It served as a transitional movement for the Cosmograph Daytona in the mid-1960s. Key upgrades over the preceding Cal. 722 include a Breguet overcoil and Microstella regulation. It was the immediate predecessor to the higher-beat Rolex Cal. 727 and is found in iconic Daytona references like the 6239 and 6241.
