CALIBRE 3075

Introduction and Launch: The Rolex calibre 3075 is an automatic movement featured in the GMT-Master, known for introducing a high-beat movement that enhanced accuracy and durability. Unlike its predecessor, the calibre 1575, the 3075 reversed the positioning of the GMT and hour hands. While some sources suggest it debuted in 1979, it did not appear in the Rolex catalogue until 1981. Despite its innovations, the calibre 3075 had a relatively short production run before being succeeded by later advancements in Rolex movement technology.

Technical Specifications

Jewels:
27 Jewels
Power Reserve:
Power reserve of approx 50 hours
Beat Rate:
Operating at 28,800 vibrations per hour (4Hz)
Movement:
Self-Winding mechanical movement
Escapement:
Calibre 3075 features a traditional Swiss lever escapement. It consists of a balance wheel, hairspring, pallet fork, and escape wheel. This mechanism not only regulates the energy release from the mainspring but also maintains the balance assembly at a consistent and precise rate
Anti-Shock:
Kif Anti-Shock System
Hairspring:
Breguet Hairspring
Certification:
Calibre 3075 is certified by the Official Swiss Chronometer Testing Institute (COSC) for precision and accuracy

Design and Features

Hands Configuration:
Hours, minutes, seconds hand with additonal 24 hour hand and date window at 3 o'clock

Watches with this Calibre

Rolex GMT-Master:
16750 / 16753 / 16758
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