Description
The achievement of an ideal
The Oyster Perpetual Day-Date 40 in 18 kt Jubilee Gold with a gold-leaf design dial, fluted bezel and a President bracelet.
Gold-leaf design dial
Miniature work of art
Each dial is a miniature work of art. The colour, reflections and surface texture, along with decorative elements and the overall design give the watch its intrinsic character. Rolex masters all aspects of its dial creation and production in-house. From the initial sketches to the final inspection, including colouring or the application of appliques, the process involves a series of steps and operations that call on specific expertise. Some of these professions – enamelling, for instance – date from the early days of watchmaking. Others are inherent to the use of cutting-edge technologies, such as magnetron sputtering, a complex technique for colouring the surface of a dial by depositing a thin film of material in a vacuum environment. A meeting of traditional skills and technology, the manufacture of Rolex dials perfectly encapsulates the philosophy that guides the brand: seeking the highest level of quality to achieve an impeccable, long-lasting result.
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.
Jubilee Gold
A gentle shine
This metal with a sophisticated hue and subtle reflections was unveiled on this exclusive version of the Oyster Perpetual Day-Date 40. The 18 kt gold alloy was conceived, developed and produced in the brand’s workshops and named Jubilee Gold. It glows with tones of tender yellow, warm grey and soft pink.
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 | Yellow |
| Collection | Day-Date |
| Model | Day-Date 40 |
| Reference | 228235JG |
| Case Material | 18 kt Jubilee Gold |
| Case Diameter | 40 mm |
| Size | Large |
| Dial | Gold-leaf design |
| Dial Gems | Not gem-set |
| Bracelet | President |
| Bracelet Material | 18 kt Jubilee 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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