Rolex Datejust 31 Oyster, 31 mm, Oystersteel and yellow gold M278273-0019
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Reference
278273
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Model case
Oyster, 31 mm, Oystersteel and yellow gold
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Water-resistance
Waterproof to 100 metres / 330 feet
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Bezel
Fluted
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Dial
Silver set with diamonds
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Bracelet
Oyster, three-piece solid links
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Movement
Perpetual, mechanical, self-winding
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Calibre
2236, Manufacture Rolex
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Power reserve
Approximately 55 hours
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Certification
Superlative Chronometer (COSC + Rolex certification after casing)
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Silver dial
This dial features diamonds in 18 ct gold settings. 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
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 Datejust 31.
Yellow Rolesor
Gold is coveted for its lustre and nobility. Steel reinforces strength and reliability. Together, they harmoniously combine the best of their properties. A true Rolex signature, Rolesor has featured on Rolex models since the early 1930s, and was trademarked as a name in 1933. It is one of the prominent pillars of the Oyster collection.
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