Day-Date 40 Oyster, 40 mm, white gold

Reference 228239
199.00
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          Description

          Ideal accomplishments

          The Oyster Perpetual Day-Date 40 in 18 kt white gold with a bright black, diamond-set dial, fluted bezel and a President bracelet.

           

          Bright black dial

          A watchmaking technique

          This dial features 10 baguette-cut diamonds. 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.

           

          Fluted bezel

          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.

           

          18 kt white 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.

            • Model case

              Oyster, 40 mm, white gold

            • Oyster architecture

              Monobloc middle case, screw-down case back and winding crown

            • Diameter

              40 mm

            • Material

              18 kt white gold

            • Bezel

              Fluted

            • 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

              3255, Manufacture Rolex

            • Precision

              -2/+2 sec/day, after casing

            • Functions

              Centre hour, minute and seconds hands. Instantaneous day and date in apertures, secure rapid-setting. Stop-seconds for exact time setting

            • Oscillator

              Paramagnetic blue Parachrom hairspring. High-performance Paraflex shock absorbers

            • Winding

              Bidirectional self-winding via Perpetual rotor

            • Power reserve

              Approximately 70 hours

            • Bracelet

              President, semi-circular three-piece links

            • Material

              18 kt white gold

            • Clasp

              Concealed folding Crownclasp

            • Dial

              Bright black set with diamonds

            • Gem settings

              10 baguette-cut diamonds

            • Certification

              Superlative Chronometer (COSC + Rolex certification after casing)