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Rolex 3175
Last updated: July 26, 2025
Brand
Caliber Number
3175
Production Period
1982-1988
Lignes
12.5”’
Diameter
28.5 mm
Height
Thicker than 3185
Power Reserve
Unconfirmed
Frequency
28,800 bph (4 Hz)
Jewels
27
Escapement
Swiss lever
Anti-Shock Device
KIF
Hand Count
4
Manufacture Region
Unconfirmed
Functions
Hours, Minutes, Seconds, Date, GMT (independent hour hand)
Rolex 3175 Description
A self-winding mechanical movement that pioneered the independent hour hand functionality in Rolex’s GMT line. Exclusively used in the first GMT-Master II (Ref. 16760 “Fat Lady”), it is a COSC-certified chronometer built on the robust 31xx platform. Its short production run makes it a relatively rare and historically significant caliber, representing a major step forward in traveler watch functionality.
