Rolex Caliber 3255 Crown Movement

Rolex Caliber 3255

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Rolex Caliber 3255 Crown Movement

Brand Rolex
Caliber Number 3255
Movement Type Automatic
In-House Yes
Jewels 44
Total Parts 201
Power Reserve 70 hours
Vibrations Per Hour 28,800
Hacking Yes
Rotor Direction Bidirectional
Balance
Paramagnetic Oscillator
Shock System Paraflex
Hairspring Parachrom Blue
Features Hours, minutes, small seconds, central chronograph seconds, 30 minutes counter, 12 hours counter
Country of Manufacture Switzerland
Known Models Rolex Day-Date 40

Originally announced at Baselworld 2015. Rolex claims the new caliber 3255 is two times more precise than an officially certified chronometer. The technology within is protected by 14 patents acquired by “The Crown”. One of the patents includes the Paramagnetic Oscillator with new balance staff that offers enhanced resistance to magnetism.

From Rolex.com:

Calibre 3255’s criteria for precision in everyday wear are twice as exacting as those for an officially certified chronometer. It incorporates the new Chronergy escapement patented by Rolex, which combines high energy efficiency with great dependability. Made of nickel‑phosphorus, it is also insensitive to magnetic interference. The oscillator, the true heart of the watch, has an optimized blue Parachrom hairspring, which is also up to 10 times more precise than a traditional hairspring in case of shocks. Thanks to a new barrel architecture and the escapement’s superior efficiency, the power reserve of calibre 3255 extends to three days. This means the watch will easily continue to run from Friday evening into Monday afternoon even if not worn or wound. -Rolex

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