Rolex Oyster Perpetual Datejust – New Versions

Launched in 1945, the Oyster Perpetual Datejust was the first Rolex watch to display the date in an aperture on the dial. Today it is the front-runner of the Rolex Oyster collection and is available in a wide variety of versions. At midnight, the date changes instantly.
A new range of dials was brought out in 2009 combining a spirit of classic refinement and creative reverie. Self-winding, equipped with a Perpetual rotor and certified by the Swiss Official Chronometer Testing Institute (COSC), the Oyster Perpetual Datejust is guaranteed waterproof to a depth of 100 metres (330 feet). It features a sapphire crystal with a Cyclops lens.

Technical details
Calibre: 2235, 3135
Self-winding: Perpetual rotor
Power reserves: 2235: 50 hours, 3135: 48 hours
Date: Instantaneous change
Oscillator Frequency: 4 Hz (28,800 beats/hour), hairspring with a Breguet overcoil
Chronometer: COSC certification

Diameters: 26 mm, 29 mm, 31 mm, 34 mm, 36 mm
Materials: 904L steel; yellow, white or Everose Rolesor; 18 ct yellow, white or Everose gold; platinum (calibre 2235 only)
Waterproofness: 100 m (330 ft)
Winding crown: Twinlock
Crystal: Sapphire with Cyclops lens

Oyster with Oysterclasp and Easylink comfort extension link
Jubilee with Crown-clasp
President (except 36 mm models) with Crown-clasp
Pearlmaster (26 and 29 mm models only) with Crown-clasp
Leather strap with Oysterclasp for 18 ct yellow and white gold versions (36 mm models only)

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