Model case
- Model case
-
Oyster, 36 mm, white gold
- Oyster architecture
-
Monobloc middle case, screw-down case back and winding crown
- Diameter
-
36 mm
- Material
-
18 ct white gold
- Bezel
-
Fluted
- Winding crown
-
Screw-down, Twinlock double waterproofness system
- Crystal
-
Scratch-resistant sapphire, Cyclops lens (2.5x) over the date
- Water-resistance
-
Waterproof to 100 metres / 330 feet
Movement
- Movement
-
Perpetual, mechanical, self-winding
- Calibre
-
3155, Manufacture Rolex
- 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
- Precision
-
Officially certified Swiss chronometer (COSC)
- Oscillator
-
Paramagnetic blue Parachrom hairspring
- Winding
-
Bidirectional self-winding via Perpetual rotor
Bracelet
- Bracelet
-
Oyster, flat three-piece links
- Bracelet material
-
18 ct white gold
- Clasp
-
Concealed folding Crownclasp
Dial
- Dial
-
White mother-of-pearl set with diamonds
- Gem-setting
-
Diamonds in 18 ct gold settings and baguette-cut diamonds at 6 and 9 oclock
From its launch in 1956, the Day-Date was immediately recognized as 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.