REFERENCE
278344RBR

MODEL CASE
Oyster, 31 mm, Oystersteel, white gold and diamonds

BEZEL
Domed, set with diamonds

WATER-RESISTANCE
Waterproof to 100 metres / 330 feet

MOVEMENT
Perpetual, mechanical, self-winding

CALIBRE
2236, Manufacture Rolex

POWER RESERVE
Approximately 55 hours

BRACELET
Oyster, flat three-piece links

DIAL
Dark grey

CERTIFICATION
Superlative Chronometer (COSC + Rolex certification after casing)

OYSTER ARCHITECTURE
Monobloc middle case, screw-down case back and winding crown

DIAMETER
31 mm

MATERIAL
White Rolesor - combination of Oystersteel and white gold

WINDING CROWN
Screw-down, Twinlock double waterproofness system

CRYSTAL
Scratch-resistant sapphire, Cyclops lens over the date

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

BRACELET MATERIAL
Oystersteel

CLASP
Folding Oysterclasp with Easylink 5 mm comfort extension link

DARK GREY DIAL

The sunray finish on Rolex dials is a predominant method in watchmaking of achieving pure metallic colour dials such as shades of silver grey, rhodium or ruthenium. Silver-plating is mostly used as a base layer for the sunray finish, where further colour is added to the prepared dial. Sometimes colours such as champagne are achieved through electroplating with more than half a dozen different metals.

DIAMOND-SET BEZEL

Gem-setters, like sculptors, finely carve the precious metal to hand-shape the seat in which each gemstone will be perfectly lodged. With the art and craft of a jeweller, the stone is placed and meticulously aligned with the others, then firmly secured in its gold or platinum setting. Besides the intrinsic quality of the stones, several other criteria contribute to the beauty of Rolex gem-setting: the precise alignment of the height of the gems, their orientation and position, the regularity, strength and proportions of the setting as well as the intricate finishing of the metalwork. A sparkling symphony to enhance the watch and enchant the wearer.

WHITE ROLESOR

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.

REFERENCE
278344RBR

MODEL CASE
Oyster, 31 mm, Oystersteel, white gold and diamonds

BEZEL
Domed, set with diamonds

WATER-RESISTANCE
Waterproof to 100 metres / 330 feet

MOVEMENT
Perpetual, mechanical, self-winding

CALIBRE
2236, Manufacture Rolex

POWER RESERVE
Approximately 55 hours

BRACELET
Oyster, flat three-piece links

DIAL
Dark grey

CERTIFICATION
Superlative Chronometer (COSC + Rolex certification after casing)

OYSTER ARCHITECTURE
Monobloc middle case, screw-down case back and winding crown

DIAMETER
31 mm

MATERIAL
White Rolesor - combination of Oystersteel and white gold

WINDING CROWN
Screw-down, Twinlock double waterproofness system

CRYSTAL
Scratch-resistant sapphire, Cyclops lens over the date

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

BRACELET MATERIAL
Oystersteel

CLASP
Folding Oysterclasp with Easylink 5 mm comfort extension link

DARK GREY DIAL

The sunray finish on Rolex dials is a predominant method in watchmaking of achieving pure metallic colour dials such as shades of silver grey, rhodium or ruthenium. Silver-plating is mostly used as a base layer for the sunray finish, where further colour is added to the prepared dial. Sometimes colours such as champagne are achieved through electroplating with more than half a dozen different metals.

DIAMOND-SET BEZEL

Gem-setters, like sculptors, finely carve the precious metal to hand-shape the seat in which each gemstone will be perfectly lodged. With the art and craft of a jeweller, the stone is placed and meticulously aligned with the others, then firmly secured in its gold or platinum setting. Besides the intrinsic quality of the stones, several other criteria contribute to the beauty of Rolex gem-setting: the precise alignment of the height of the gems, their orientation and position, the regularity, strength and proportions of the setting as well as the intricate finishing of the metalwork. A sparkling symphony to enhance the watch and enchant the wearer.

WHITE ROLESOR

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.