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technical details
| Reference ： 278285RBR |
| MODEL CASE： Oyster, 31 mm, Everose gold and diamonds |
| WATER-RESISTANCE： Waterproof to 100 metres / 330 feet |
| BEZEL： Set with diamonds |
| DIAL： Rosé-colour |
| BRACELET： President, semi-circular three-piece links |
| MOVEMENT： Perpetual, mechanical, self-winding |
| CALIBRE： 2236, Manufacture Rolex |
| POWER RESERVE： Approximately 55 hours |
| CERTIFICATION： Superlative Chronometer (COSC + Rolex certification after casing) |
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.
Rosé-colour 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.
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.