This Oyster Perpetual Datejust 31 in Oystersteel and white gold features a blue, diamond-set dial and an Oyster bracelet.
This dial features diamonds in 18 ct gold settings. The sunray finish creates delicate light reflections on many dials in the Oyster Perpetual collection. It is obtained using masterful brushing techniques that create grooves running outwards from the centre of the dial.
Light is diffused consistently along each engraving, creating a characteristic subtle glow that moves depending on the position of the wrist. Once the sunray finish has been completed, the dial colour is applied using Physical Vapour Deposition or electroplating. A light coat of varnish gives the dial its final look.
The Rolex fluted bezel is a mark of distinction. Originally, the fluting of the Oyster bezel had a functional purpose: it served to screw the bezel onto the case helping to ensure the waterproofness of the watch.
It was therefore identical to the fluting on the case back, which was also screwed onto the case for waterproofness, using specific Rolex tools. Over time, the fluting became an aesthetic element, a genuine Rolex signature feature. Today the fluted bezel is a mark of distinction, in gold on this Datejust 31.
Gold is coveted for its lustre and nobility. Steel reinforces strength and reliability. Together, they harmoniously combine the best of their properties.
A true Rolex signature, Rolesor has featured on Rolex models since the early 1930s, and was trademarked as a name in 1933. It is one of the prominent pillars of the Oyster collection.
The Oyster bracelet is a perfect alchemy of form and function, aesthetics and technology, designed to be both robust and comfortable.
It is equipped with an Oysterclasp and the Easylink comfort extension link, also exclusive to Rolex. This ingenious system allows the wearer to increase the bracelet length by approximately 5 mm, providing additional comfort in any circumstance.
Model Case
Type
- Oyster, 31 mm, Oystersteel and white gold
Diameter
- 31 mm
Material
- White Rolesor
Bezel
- Fluted
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 100 metres / 330 feet
Movement
Type
- Perpetual, mechanical, self-winding
Calibre
- 2235, Manufacture Rolex
Precision
+2/-2 sec/day, after casing
Oscillator
- Syloxi hairspring in silicon with patented geometry. 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 55 hours
Bracelet
Type
- Oyster, three-piece solid links
Bracelet Material
- Oystersteel
Clasp
- Folding Oysterclasp with Easylink 5 mm comfort extension link
Dial
Type
- Blue set with diamonds
Certification
Superlative Chronometer (COSC + Rolex certification after casing)
Case reference 178274