Launched in 1945, the Datejust was the first self-winding waterproof chronometer wristwatch with a window displaying the date at 3 o’clock on the dial. This unique combination was further enhanced in 1953 with the magnifying effect of the Cyclops lens on the display. With these inventions, the Datejust embodied the quest for excellence of Rolex founder Hans Wilsdorf, who believed that watchmaking progress should encourage human progress. In an era of great change. The Datejust offers comfort as well as legibility and daily time management. Useful and practical, it was soon established as a precious instrument for the modern, independent, active wearer.
Created to improve the legibility of the date, the Cyclops lens is both an aesthetic and technical brand signature. This Rolex invention, named after the one-eyed giant in Greek mythology, was patented in the early 1950s and presented for the first time in 1953 on a Datejust. Its magnifying effect makes the date easier to read. Initially in plexiglass, it has been crafted in sapphire since the 1970s, like the watch’s crystal. Virtually impervious to scratches, the sapphire now features a double anti-reflective coating, making it even more effective.
For more than a century, gold and steel have come together in a pas de deux where sophistication meets strength. Created in the early 1930s, Rolesor features exclusively on Rolex watches in the Oyster Perpetual collection. The concept is simple: the bezel, the winding crown and the centre bracelet links are made of yellow or Everose gold while the middle case and outer links of the bracelet are made of Oystersteel. On white Rolesor models, the bezel alone is in white gold. These unique combinations are one of the brand’s signature features.
Model Case
Type
- Oyster, 36 mm, 18 ct white gold
Diameter
- 36 mm
Bezel
- Diamond-set
Oyster Architecture
- Monobloc middle case, screw-down case back and winding crown
Winding Crown
- Screw-down, Twinlock double waterproofness system
Crystal
- Scratch-resistant sapphire, Cyclops lens over the date
Water Resistance
- Waterproof to 50vmetres / 165 feet
Movement
Type
- Perpetual, mechanical, self-winding
Calibre
- 3135, Manufacture Rolex
Precision
- +2/-2 sec/day, after casing
Oscillator
- Paramagnetic blue Parachrom hairspring. High-performance Paraflex shock absorbers
Winding
- Bidirectional self-winding via Perpetual rotor
Functions
- Centre hour, minute and seconds hands. Instantaneous date with rapid setting. Stop-seconds for precise time setting
Power reserve
- Approximately 48 hours
Bracelet
Type
- Leather
Bracelet Material
- Crocodile leather
Clasp
- Folding Oysterclasp with Easylink 5 mm comfort extension link
Dial
Type
- Pink with diamonds set
Certification
Superlative Chronometer (COSC + Rolex certification after casing)
Case reference 116189