DATEJUST 31

Reference
278285RBR 

Model Case
Oyster 31 mm Everose gold and diamonds 

Bezel
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
President, semi-circular three-piece links 

Dial
White mother-of-pearl set with diamonds 

Certification
Superlative Chronometer (COSC + Rolex certification after casing) 

MOTHER-OF-PEARL DIAL

Mother-of-pearl is by its nature full of mystery and surprises. Depending on its origin, it can be pink, white, black or yellow. It differs in colour, intensity and structure according to the part of the shell from which it is extracted. At Rolex, mother-of-pearl is never artificially coloured. Instead, particular know-how and skill are devoted to simply highlighting its natural beauty and preserving the original hues. As all mother-of-pearl dials are unique pieces, an identical dial will never be found on another wrist.

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.

18 CT EVEROSE GOLD

To preserve the beauty of its pink gold watches, Rolex created and patented an exclusive 18 ct pink gold alloy cast in its own foundry: Everose gold. Introduced in 2005, 18 ct Everose is used on all Rolex Oyster models in pink gold.