Model case
- Crystal
Scratch-resistant sapphire, Cyclops lens (2.5x) over the date
- Water-resistance
Waterproof to 100 metres / 330 feet
- Model case
Oyster, 36 mm, Everose gold
- Bezel
Fluted
- Diameter
36 mm
- Winding crown
Screw-down, Twinlock double waterproofness system
- Oyster architecture
Monobloc middle case, screw-down case back and winding crown
- Material
18 ct Everose gold
Movement
- Calibre
3155, Manufacture Rolex
- Model case
Perpetual, mechanical, self-winding
- Oscillator
Paramagnetic blue Parachrom hairspring
- Winding
Bidirectional self-winding via Perpetual rotor
- Precision
Officially certified Swiss chronometer (COSC)
- Functions
Centre hour, minute and seconds hands. Instantaneous date and day in windows on the dial with rapid setting. Stop seconds for precise time setting
Bracelet
- Clasp
Concealed folding Crownclasp
- Bracelet material
18 ct Everose gold
- Bracelet
President, semi-circular three-piece links
Dial
- Gem-setting
Diamonds in 18 ct gold settings and baguette-cut diamonds at 6 and 9 oclock
- Dial
Meteorite set with diamonds
From its launch in 1956, the Day-Date was immediately recognized asВ the watch worn by influential people. The Day-Date was the first calendar wristwatch to display the day, as well as the date, in its entirety. Faithful to its noble origins, the Day-Date is made exclusively of gold or platinum, the most precious metals.