The Oyster Perpetual Day-Date 40 in 18 kt yellow gold with a silver dial, fluted bezel and a President bracelet.
A Rolex signature
The Rolex fluted bezel is a mark of distinction. Originally, the fluting of the Oyster bezel had a functional purpose: it served to screw the bezel onto the case helping to ensure the waterproofness of the watch.
It was therefore identical to the fluting on the case back, which was also screwed onto the case for waterproofness, using specific Rolex tools. Over time, the fluting became an aesthetic element, a genuine Rolex signature feature. Today the fluted bezel is a mark of distinction, in gold on this Day-Date 40.
A watchmaking technique
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 kt yellow gold
Commitment to excellence
By operating its own exclusive foundry, Rolex has the unrivalled ability to cast the highest quality 18 kt gold alloys. According to the proportion of silver, copper, platinum or palladium added, different types of 18 kt gold are obtained: yellow, pink or white.
They are made with only the purest metals and meticulously inspected in an in-house laboratory with state-of-the-art equipment, before the gold is formed and shaped with the same painstaking attention to quality. Rolex's commitment to excellence begins at the source.
The President bracelet
The ultimate refinement
The design, development and production of Rolex bracelets and clasps, as well as the stringent tests they face, involve advanced high technology.
And, as with all the components of the watch, aesthetic controls by the human eye guarantee impeccable beauty. The President bracelet, with its semi-circular three piece links, was created in 1956 for the launch of the Oyster Perpetual Day-Date. It represents the ultimate in refinement and comfort and is always made of carefully selected precious metals.
More Day-Date technical details
Oyster, 40 mm, yellow gold
Monobloc middle case, screw-down case back and winding crown
18 kt Yellow gold
Screw-down, Twinlock double waterproofness system
Scratch-resistant sapphire, Cyclops lens over the date
Waterproof to 100 metres / 330 feet
Perpetual, mechanical, self-winding
3255, Manufacture Rolex
-2/+2 sec/day, after casing
Centre hour, minute and seconds hands. Instantaneous day and date in apertures, unrestricted rapid-setting. Stop-seconds for precise time setting
Paramagnetic blue Parachrom hairspring. High-performance Paraflex shock absorbers
Bidirectional self-winding via Perpetual rotor
Approximately 70 hours
President, semi-circular three-piece links
18 kt yellow gold
Concealed folding Crownclasp
Highly legible Chromalight display with long-lasting blue luminescence
Superlative Chronometer (COSC + Rolex certification after casing)
Learn how to set the time and other functions of your Rolex watch by consulting our user guides.
Contact an Official Rolex Jeweler
Only official Rolex jewelers are allowed to sell and maintain a Rolex watch. With the necessary skills, technical know-how and special equipment, they guarantee the authenticity of each and every part of your Rolex and help you make the choice that will last a lifetime.
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