CALIBRE 3185

Introduction and Launch: The Rolex calibre 3185, introduced in 1989 with its debut in the GMT-Master II Ref. 16710, is an automatic self-winding mechanical GMT movement designed and manufactured entirely by Rolex. It's based on the acclaimed Rolex 3135 architecture and incorporates a 24-hour hand for GMT functionality, alongside a quickset date feature. Around 2005-2006, Rolex upgraded this movement to the calibre 3186.

Technical Specifications

Jewels:
31 Jewels
Power Reserve:
Power reserve of approx 48 hours
Beat Rate:
Operating at 28,800 vibrations per hour (4Hz)
Movement:
Self-Winding mechanical movement
Escapement:
Calibre 3185 uses a traditional Swiss lever escapement. This type of escapement is widely recognized for its reliability and precision, and it has been a standard in high-quality mechanical watches for many years
Anti-Shock:
Kif anti-shock system
Hairspring:
Breguet hairspring
Certification:
Calibre 3185 is certified by the Official Swiss Chronometer Testing Institute (COSC) for precision and accuracy

Design and Features

Hands Configuration:
Hours, minutes, seconds, central independent GMT hand and date window at 3 o’clock.

Watches with this Calibre

Rolex GMT-Master II:
16710 / 16713 / 16718
Rolex Explorer II:
16570
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