Rolex 3135

	Brand:	Rolex
	Family:	Rolex 3100 Family
	Height:	6.00 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. 3135 © Rolex	Complications:	Date, Hacking Seconds, Hand Winding, Instant Date Change, Quick Date Correction
	Hands:	Central Hour Hand, Central Minute Hand, Central Seconds Hand, Date Window at 3:00

Distinguishing Technical Characteristics
Central-Rotor Automatic Balance Bridge Microstella Balance Balance Balance at 6:00 Central Rotor
Production: 1988 – Current
1910s	1920s	1930s	1940s	1950s	1960s	1970s	1980s	1990s	2000s	2010s	2020s

Rolex Cal. 3135 is a mainstream automatic movement with date produced by Rolex from 1988 through at least 2009. It replaced the Cal. 3035 in the famous Datejust and other Rolex Date models and was updated with an in-house Parachrom spring beginning in 2009. The new Chronergy-based Cal. 3235 appeared in 2015 and is replacing Cal. 3135 and the larger Cal. 3136 across the board.

• Rolex Datejust, Ref. 16263, 16264
• Rolex Date 34 (2007-present), Ref. 115200 (Parachrom)
• Rolex Sea-Dweller (1989-2009), Ref. 16600
• Rolex Sea-Dweller 4000 (2014-2017), Ref. 116600 (Parachrom)
• Rolex Submariner Date (1988-2010), Ref. 16610, 166113, 16618
• Rolex Submariner Date (2010-present), Ref. 116610, 116613, 116618, 116619 (Parachrom)
• Rolex Deepsea (2008-2018), Ref. 116660 (Parachrom)
• Rolex Yacht Master, Ref. 16622, 16623, 16628
• Rolex Yacht Master 40, Ref. 116621, 116622, 116623, 116655, 116695

Like most other contemporary Rolex movements, Cal. 3135 measures 28.50 mm in diameter. When the larger 41 mm Datejust II was introduced in 2009, Rolex created a special larger movement for it, Cal. 3136. Although similar in many ways to Cal. 3135, it measures 30.97 mm in diameter, with a larger date wheel, and adds the new Rolex-made Paraflex shock absorbers.

One major upgrade for the 3100 family was the use of a full balance bridge rather than the simple balance cock used previously. This added stability and durability to an already well-respected movement. The balance is made of the advanced beryllium/copper alloy known as Glucydur and uses Microstella regulation using four screws inside. The balance uses a Nivarox hairspring, the only component not produced in-house by Rolex, and features a Breguet overcoil laser welded to the balance stud. The automatic winding gears, coated in PTFE, are deep red colored, and the rotor uses synthetic rubies rather than ball bearings. Most 3100 movements still use the Kif Elastor anti-shock system on the balance.

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