Description
The achievement of an ideal
The Oyster Perpetual Day-Date 40 in 18 kt Everose gold with a diamond-paved dial, fluted bezel and a President bracelet.
Diamond-Paved Dial
Optimal brilliance
This dial features 10 baguette-cut diamonds. Diamonds, sapphires, rubies, emeralds – the noblest and most precious stones are selected to grace Rolex timepieces. The brand has in-house expertise and equipment enabling it to bejewel any model in its catalogue. Experienced gemmologists first select gemstones of the highest quality. For this, they can rely on their own seasoned judgement as well as state-of-the-art analysis equipment. The stones are then entrusted to the gem-setters, who skilfully place each precious stone onto the watch by hand, one by one, assuring precision to within hundredths of a millimetre. Such stringent tolerances guarantee that each stone shines with optimal brilliance and is perfectly aligned with those around it. These time-honoured gestures, which may be repeated many hundreds of times, ensure that each gem-set watch produced by Rolex sparkles with exceptional intensity and reflects the standard of excellence required by the brand.
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 Everose gold
An exclusive patent
To preserve the beauty of its pink gold watches, Rolex created and patented an exclusive 18 kt pink gold alloy cast in its own foundry: Everose gold. Introduced in 2005, 18 kt Everose is used on all Rolex models in pink gold.
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.
Specifications
| Brand | Rolex |
|---|---|
| Gender | Male |
| AgeGroup | Adult |
| Color | Diamond |
| Collection | Day-Date |
| Model | Day-Date 40 |
| Reference | 228235 |
| Case Material | 18 kt Everose gold |
| Case Diameter | 40 mm |
| Size | Large |
| Dial | Diamond-paved |
| Dial Gems | PAVED 10BBR |
| Bracelet | President |
| Bracelet Material | 18 kt Everose gold |
| Clasp | Concealed folding Crownclasp |
| Bezel | Fluted |
| Crystal | Scratch-resistant sapphire, Cyclops lens over the date |
| Winding Crown | Screw-down, Twinlock double waterproofness system |
| Water Resistance | Waterproof to 100 metres / 330 feet |
| Oyster Architecture | Monobloc middle case, screw-down case back and winding crown |
| Calibre | 3255, Manufacture Rolex |
| Movement | Perpetual, mechanical, self-winding |
| Functions | Centre hour, minute and seconds hands. Instantaneous day and date in apertures, secure rapid-setting. Stop-seconds for exact time setting |
| Power Reserve | Approximately 70 hours |
| Precision | -2/+2 sec/day, after casing |
| Oscillator | Paramagnetic blue Parachrom hairspring. High-performance Paraflex shock absorbers |
| Winding | Bidirectional self-winding via Perpetual rotor |
| Certification | Superlative Chronometer (official chronometer certification + Rolex certification after casing) |






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