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.
Rolex uses Oystersteel for its steel watch cases. Specially developed by the brand, Oystersteel belongs to the 904L steel family, alloys most commonly used in high-technology and in the aerospace and chemical industries, where maximum resistance to corrosion is essential.
Oystersteel is extremely resistant, offers an exceptional finish once polished and maintains its beauty even in the harshest environments.
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
Diameter
- 31 mm
Material
- Oystersteel
Bezel
- Domed
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
- 2236, 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
- Silver
Certification
Superlative Chronometer (COSC + Rolex certification after casing)
Case reference 278240
Bracelet reference 72360
