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You are here: Home / Movements / Rolex 3285

Rolex 3285

Last Update: November 18, 2019

Brand:Rolex
Family:
Rolex Chronergy Family
Height:
Jewels:31
Reserve:70 hours
Frequency:28,800 A/h
Winding:Automatic, Bi-Directional Automatic Winding, Central Rotor Automatic Winding
Diameter:28.50 mm (12.5 ligne)
Rolex Cal. 3285 © Rolex Complications:24 Hour Hand, Date, GMT Hand, Hacking Seconds, Hand Winding, Independently-Adjustable 24 Hour Hand, Quick Date Correction
Hands:Central 24 Hour Hand, Central Hour Hand, Central Minute Hand, Central Seconds Hand, Date Window at 3:00
Distinguishing Technical Characteristics
Central-Rotor Automatic
Balance Bridge
Chronergy Balance
Balance
Balance at 6:00
Central Rotor
Production: 2018 – Current
1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s 2000s 2010s 2020s

Cal. 3285 is the current GMT and date movement from Rolex. Part of the updated Chronergy family, it features 3-day power reserve and many new components. Cal. 3285 first appeared at Baselworld in 2018 in the GMT-Master II, Ref. 126710. It replaced the Cal. 3186 in most applications.

  • Rolex GMT-Master II (2018-present), Ref. 126710, 126711, 126715

This movement is described by Rolex as a “Superlative Chronometer.” The company uses this term to indicate their most accurate modern movements. They claim that these are twice as accurate as any official chronometer certification, to -2/+2 seconds per day “after casing.” The Superlative Chronometer test is performed in-house and goes beyond COSC procedures.

Rolex introduced the Chronergy family in 2015 with Cal. 3255, an updated movement for the famous Day-Date (President) model. It is a major redesign, with Rolex claiming that over 90% of the components are redesigned or all-new. The marquee feature for consumers is the “3-day” (70 hour) power reserve, which is made possible by the “Chronergy escapement” with optimized gears and lubricants as well as a longer mainspring inside a thinner barrel. Other notable features include more efficient automatic winding, unrestricted calendar correction, and “backward” (counter-clockwise) time setting.

The movement can be manually wound with the crown in position 1. Rotate the crown clockwise to wind the mainspring.

The date wheel is advanced along with the independent 12 hour hand, forward or backward, with the crown in second position (one notch out). Set the hour hand to the local time and date, leaving the 24 hour hand showing “home time”.

The time is set with the crown in third position (pulled all the way out). Rotate the crown counter-clockwise to advance the minute and hour hands and clockwise to turn them backward.

3000 Family3100 FamilyParachrom FamilyChronergy Family
1977-20011988-20102005-present2015-present
Time Only300031303130
3132
Milgauss3131
Datejust303531353135
3136
3235
Day-Date305531553155
3156
3255
GMT307531753187
GMT II3085318531863285
Images are taken from official publications and are used here for commentary and educational purposes. Copyright is held by the original owner as noted.

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