Rolex 3186

Last updated: July 27, 2025

Brand

Rolex

Caliber Number

3186

Production Period

c. 2005 – c. 2018

Lignes

12.5”’

Diameter

28.5 mm

Height

6.45 mm

Power Reserve

Unconfirmed

Frequency

28,800 bph (4 Hz)

Jewels

Escapement

Swiss lever escapement

Anti-Shock Device

Unconfirmed

Hand Count

Manufacture Region

Unconfirmed

Functions

Hours, Minutes, Sweep Seconds, Date, GMT (24-hour hand), Independently adjustable 12-hour hand, Hacking Seconds

Rolex 3186 Description

The Rolex Caliber 3186 is a COSC-certified chronometer movement used in GMT-Master II and Explorer II models starting around 2005. Its key feature is an independently adjustable 12-hour hand for tracking a second time zone. It notably introduced the blue Parachrom hairspring for improved anti-magnetism and temperature resistance over its predecessor, the Cal. 3185. The 3186 also featured a refined jumper mechanism for smoother setting of the GMT hand, solidifying its reputation as a robust and reliable “true” GMT movement.