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You are here: Home / Movements / Rolex 3155

Rolex 3155

Last Update: November 29, 2019

Brand:Rolex
Family:
Rolex 3100 Family
Height:6.45 mm
Jewels:31
Reserve:48 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. 3155 © Rolex Complications:Date, Day, Hacking Seconds, Hand Winding, Outer Day Wheel, Quick Date Correction, Quick Day Correction
Hands:Central Hour Hand, Central Minute Hand, Central Seconds Hand, Date Window at 3:00, Day Window at 12:00
Distinguishing Technical Characteristics
Central-Rotor Automatic
Balance Bridge
Microstella Balance
Balance
Balance at 6:00
Central Rotor
Production: 1988 – 2019
1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s 2000s 2010s 2020s

Cal. 3155 is an automatic movement with day and date used in the famous Rolex “President” Day-Date watch from 1988 through 2019. It was launched in 1988 in Ref. 118000, replacing Cal. 3055 in the Day-Date. The Day-Date was updated in 2000 but continued to use this movement, even as the Day-Date II launched with the larger Cal. 3156. Cal. 3155 continued in use in the 36 mm Day-Date until 2019 when the new Day-Date 36 with Cal. 3255 was introduced.

  • 1988-2019 Rolex Day-Date, Ref. 118000, 118205, 118206, 118208, 118235, 118238, 118239

Note that many sources list the height of Cal. 3155 as being 6.00 mm (the same as the base Cal. 3135), the official Rolex parts document shows it as 6.45 mm.

Parachrom Update

Cal. 3155 was updated with the Parachrom hairspring between 2008 and 2010 but continued to use the Kif Elastor anti-shock device, unlike other Parachrom movements.

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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