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Rolex 3055
Last updated: July 26, 2025
Brand
Caliber Number
3055
Production Period
1978-1988
Lignes
12.5”’
Diameter
28.5 mm
Height
6.35 mm
Power Reserve
Unconfirmed
Frequency
28,800 bph (4 Hz)
Jewels
27
Escapement
Swiss lever
Anti-Shock Device
KIF
Hand Count
3
Manufacture Region
Unconfirmed
Functions
Hours, Minutes, Seconds, Day, Date (Single Quickset)
Rolex 3055 Description
The engine of the Day-Date from the late 70s to late 80s, this COSC-certified caliber introduced the high-beat frequency (28,800 bph) and, most importantly, the “Single Quickset” date function to the line. While the day was not quickset, this movement was a major step in user convenience and powered the first sapphire-equipped Day-Date models (Ref. 180xx), setting the stage for its “Double Quickset” successor.
Watches Using The Rolex 3055 Caliber
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