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Rolex
Lady-Datejust
Oyster, 28 mm, platinum and diamonds
Reference
279136RBR
Model Case
Oyster, 28 mm, platinum and diamonds
Oyster Architecture
Monobloc middle case, screw-down case back and winding crown
Diameter
28 mm
Material
Platinum
Bezel
Set with diamonds
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
President, semi-circular three-piece links
Bracelet Material
Platinum
Clasp
Concealed folding Crownclasp
Dial
Ice blue set with diamonds
Gem-setting
Diamonds in 18 ct gold settings
Certification
Superlative Chronometer (COSC + Rolex certification after casing)



Ice-Blue Dial
The ice-blue dial is the discreet and exclusive signature of a Rolex platinum watch. Rolex uses platinum, the noblest of metal, for the finest of watches.

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.

Platinum
Rare and precious, platinum is striking for its silvery whiteness and vibrant luminosity. It is among the densest and heaviest metals in the world, distinguished by unique chemical and physical properties such as exceptional corrosion resistance. Paradoxically, it is also soft, elastic and highly malleable, which makes machining and polishing especially difficult, demanding an extremely high degree of skill. Rolex always uses 950 platinum, an alloy consisting of 950‰ (thousandths) platinum, painstakingly crafted in-house by the fine metalworkers at Rolex. The noblest of metals for the finest of watches.

MODEL AVAILABILITY
All Rolex watches are assembled by hand with the utmost care to ensure exceptional quality. Such high standards naturally restrict Rolex production capacity and, at times, the demand for Rolex watches outpaces this capacity.
Therefore, the availability of certain models may be limited. New Rolex watches are exclusively sold by Official Rolex Retailers, who receive regular deliveries and independently manage the allocation and sales of watches to customers.
Srichai Watch is proud to be part of the worldwide network of Official Rolex Retailers and can provide information on the availability of Rolex watches.
Rolex’s classic feminine watch, the Lady-Datejust is in the lineage of the Datejust, the emblematic model that has been a byword for style and accurate timekeeping since its launch in 1945. The first women’s version of this date chronometer, the Lady-Datejust, appeared in the late 1950s, bringing the heritage of timeless elegance and functionality to a smaller size perfectly suited to a lady’s wrist.
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