ロレックス デイデイト 40 Rolex Day-Date 40mm 228236 Platinum President Fluted Bezel Grey Dial New/Complete/2023

The Oyster Perpetual Day‑Date 40 in platinum with a slate dial, fluted bezel and a President bracelet.

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 platinum on this Day‑Date 40.

Slate Dial 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.

Platinum The noblest of metals
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.

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.

Features:
Model: Day-Date
Reference number: m228236-0013
Case material: Platinum
Case diameter: 40mm
Bracelet material: Platinum
Power: 70 Hours
Gender: Man
Movement: Perpetual, mechanical, self-winding
Movement/Caliber: 3255, Manufacture Rolex
Water resistance: Waterproof to 100 metres / 330 feet
Bracelet: President, semi-circular three-piece links