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REFERENCE
228238
MODEL CASE
Oyster, 40 mm, yellow gold
BEZEL
Fluted
WATER-RESISTANCE
Daily waterproofing (bathing - hand washing, etc.)
MOVEMENT
Perpetual, mechanical, self-winding
CALIBRE
Clone Rolex Caliber 3255
POWER RESERVE
Approximately 36-45 hours
BRACELET
President, semi-circular three-piece links
DIAL
Bright black set with diamonds
Gem settings
10 baguette-cut diamonds
BRIGHT BLACK DIAL
A watchmakingtechnique
This dial features 10 baguette-cut diamonds. Thesunray finish creates delicate light reflections onmany dials in the Oyster Perpetual collection. lt isobtained using masterful brushing techniquesthat create grooves running outwards from thecentre of the dial.
Light is diffused consistently along eachengraving, creating a characteristic subtle glowthat moves depending on the position of thewrist. Once the sunray finish has beencompleted, the dial colour is applied usingPhysical Vapour Deposition or electroplating. Alight coat of varnish gives the dial its final look.
FLUTED BEZEL
A Rolex signature
The Rolex fluted bezel is a mark of distinction.Originally, the fluting of the Oyster bezel had afunctional purpose: it served to screw the bezelonto the case helping to ensure thewaterproofness of the watch.
It was therefore identical to the fluting on thecase back, which was also screwed onto the casefor waterproofness, using specific Rolex tools.Over time, the fluting became an aestheticelement, a genuine Rolex signature feature.Today the fluted bezel is a mark of distinction, ingold on this Day-Date 40.
18 CTYELLOW GOLD
Commitment toexcellence
By operating its own exclusive foundry, Rolex hasthe unrivalled ability to cast the highest quality 18ct gold alloys. According to the proportionof silver, copper, platinum or palladium added,different types of 18 ct gold are obtained: yellow,pink or white.
They are made with only the purest metals andmeticulously inspected in an in-house laboratorywith state-of-the-art equipment, before the goldis formed and shaped with the same painstakingattention to quality. Rolex's commitment toexcellence begins at the source.
THE PRESIDENT BRACELET
The ultimaterefinement
The design, development and production ofRolex bracelets and clasps, as well as thestringent tests they face, involve advanced hightechnology.
And, as with all the components of the watch,aesthetic controls by the human eye guaranteeimpeccable beauty. The President bracelet, withits semi-circular three piece links, was created in1956 for the launch of the Oyster Perpetual Day-Date.lt represents the ultimate in refinement andcomfort and is always made of carefully selected vprecious metals.