
Bezel | Set with diamonds |
Bracelet | President, semi-circular three-piece links |
Bracelet Material | 18 ct Everose gold |
Calibre | 3255, Manufacture Rolex |
Certification | Superlative Chronometer (COSC + Rolex certification after casing) |
Clasp | Concealed folding Crownclasp |
CollectionName | Day-Date |
Crystal | Scratch-resistant sapphire, Cyclops lens over the date |
Dial | Eisenkiesel set with diamonds |
Diameter | 40 mm |
Gem setting | 10 baguette-cut diamonds |
Material | 18 ct Everose gold |
Model Case | Oyster, 40 mm, Everose gold and diamonds |
Movement | Perpetual, mechanical, self-winding |
Power Reserve | Approximately 70 hours |
Reference / Code | 228345RBR |
Water Resistance | Waterproof to 100 metres / 330 feet |
Winding Crown | Screw-down, Twinlock double waterproofness system |


Eisenkiesel dial
This dial features 10 baguette-cut diamonds. The Oyster Perpetual Day-Date 40 is presented with a dial made from eisenkiesel, a deep brown decorative stone used by the brand for the first time in 2021. Eisenkiesel is an iron-oxide, delicately veined quartz. The stone discs destined for the dials are cut from a block of raw material. Only those whose colour and structure fully satisfy the brand’s exacting aesthetic requirements are selected. They will grace the dial of a Rolex watch, conferring it with a unique personality.
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.