REFERENCE
278240
MODEL CASE
Oyster, 31 mm, Oystersteel
OYSTER ARCHITECTURE
Monobloc middle case, screw-down case back and winding crown
DIAMETER
31 mm
MATERIAL
Oystersteel
BEZEL
Domed
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
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
POWER RESERVE
Approximately 55 hours
BRACELET
Jubilee, five-piece links
BRACELET MATERIAL
Oystersteel
CLASP
Concealed folding Crownclasp
DIAL
Pink
CERTIFICATION
Superlative Chronometer (COSC + Rolex certification after casing)
Pink Dial
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.
Oystersteel
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 Jubilee bracelet
The design, development and production of Rolex bracelets and clasps, as well as the stringent tests they face, involve advanced high technology. And, as with all the components of the watch, aesthetic controls by the human eye guarantee impeccable beauty. The Jubilee, a supple and comfortable five-piece link metal bracelet, was designed and made especially for the launch of the Oyster Perpetual Datejust in 1945.
REFERENCE
278240
MODEL CASE
Oyster, 31 mm, Oystersteel
OYSTER ARCHITECTURE
Monobloc middle case, screw-down case back and winding crown
DIAMETER
31 mm
MATERIAL
Oystersteel
BEZEL
Domed
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
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
POWER RESERVE
Approximately 55 hours
BRACELET
Jubilee, five-piece links
BRACELET MATERIAL
Oystersteel
CLASP
Concealed folding Crownclasp
DIAL
Pink
CERTIFICATION
Superlative Chronometer (COSC + Rolex certification after casing)
Pink Dial
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.
Oystersteel
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 Jubilee bracelet
The design, development and production of Rolex bracelets and clasps, as well as the stringent tests they face, involve advanced high technology. And, as with all the components of the watch, aesthetic controls by the human eye guarantee impeccable beauty. The Jubilee, a supple and comfortable five-piece link metal bracelet, was designed and made especially for the launch of the Oyster Perpetual Datejust in 1945.
