Watch Features

Instantaneous day display

Everose gold

To preserve the beauty of its pink gold watches, Rolex created and patented an exclusive 18 ct pink gold alloy cast in its own foundry: Everose gold. Introduced in 2005, 18 ct Everose is used on all Rolex models in pink gold.

Sundust Dial

The dial is the distinctive face of a Rolex watch, the feature most responsible for its identity and readability. Characterised by hour markers fashioned from 18 ct gold to prevent tarnishing, every Rolex dial is designed and manufactured in-house, largely by hand to ensure perfection.

The President bracelet

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.

3255 Movement

The Day-Date 40 is equipped with a new-generation movement, calibre 3255, entirely developed and manufactured by Rolex for a superlative level of performance. This self-winding mechanical movement is at the forefront of the art of watchmaking. A consummate demonstration of Rolex technology, with 14 patents, it offers fundamental gains in terms of precision, power reserve, resistance to shocks and magnetism, ease of use and reliability.

Monday, Lundi

Initially presented in 1956, the Day-Date was a world first. The first watch to indicate the day of the week spelt out in full. Worn by many world leaders, the Day-Date is available with a bespoke day display in a wide choice of languages.

Specifications

Reference 228345RBR
Model case
Model case
Oyster, 40 mm, Everose gold and diamonds
Oyster architecture
Monobloc middle case, screw-down case back and winding crown
Diameter
40 mm
Material
18 ct Everose gold
Bezel
Set with diamonds
Winding crown
Screw-down, Twinlock double waterproofness system
Crystal
Scratch-resistant sapphire, Cyclops lens over the date
Water-resistance
Waterproof to 100 metres / 330 feet
Movement
Movement
Perpetual, mechanical, self-winding
Calibre
3255, Manufacture Rolex
Precision
-2/+2 sec/day, after casing
Functions
Centre hour, minute and seconds hands Instantaneous day and date in apertures, unrestricted rapid-setting. Stop-seconds for precise time setting
Oscillator
Paramagnetic blue Parachrom hairspring. High-performance Paraflex shock absorbers
Winding
Bidirectional self-winding via Perpetual rotor
Power reserve
Approximately 70 hours
Bracelet
Bracelet
President, semi-circular three-piece links
Bracelet material
18 ct Everose gold
Clasp
Concealed folding Crownclasp
Dial
Dial
Sundust set with diamonds
Gem-setting
10 baguette-cut diamonds
Certification
Superlative Chronometer (COSC + Rolex certification after casing)