Earlier in 2023, Rolex unveiled the latest generation Daytona, along with its all-new caliber 4131 automatic chronograph movement.

On the occasion of the 100th anniversary of the Le Mans race, Rolex announced yet another new chronograph movement in 2023, the caliber 4132. This movement takes all the enhancements and specifications from the caliber 4131, and extends the elapsed time from 12 hours to 24 hours, thanks to a special in-house developed add-on 24-hour differential (pictured below).

Close up on the 24 hours diffrential

At launch, the caliber 4132 is exclusively available in the all-new 2023 Rolex Daytona Le Mans Anniversary Edition, offered in white gold, with an open caseback.


Caliber: 4132

Release Date: 2023

Country: Swiss made

Type: Automatic


Total Components:

Jewels: 47

Oscillating Frequency: 4Hz (28,800 VPH)

Power Reserve: 72 hours

Functions: Hours, minutes, small seconds, chronograph (24-hour elapsed time limit)

Balance Wheel: Variable inertia, free-sprung

Rotor: skeletonized, bi-directional winding

Finishing: Rolex Côtes de Genève, faux gold chatons

Unique Features: Traversing bridges, 24-hour differential


2023 Rolex Daytona Ref. 126529LN Le Mans Anniversary Edition caseback

Posted by:Jason Pitsch

Jason is the founder of Professional Watches and specializes in writing, product photography, and digital marketing.