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Graceful elegance
This Oyster Perpetual Lady-Datejust in 18 ct yellow gold features a silver, diamond-set dial and a President bracelet.
Silver dial
A watchmaking technique
This dial features diamonds in 18 ct gold settings. The sunray finish creates delicate light reflections on many dials in the Oyster Perpetual collection. It is obtained using masterful brushing techniques that create grooves running outwards from the centre of the dial.
Light is diffused consistently along each engraving, creating a characteristic subtle glow that moves depending on the position of the wrist. Once the sunray finish has been completed, the dial colour is applied using Physical Vapour Deposition or electroplating. A light coat of varnish gives the dial its final look.
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 Lady-Datejust.
18 ct yellow gold
Commitment to excellence
By operating its own exclusive foundry, Rolex has the unrivalled ability to cast the highest quality 18 ct gold alloys. According to the proportion of silver, copper, platinum or palladium added, different types of 18 ct gold are obtained: yellow, pink or white.
They are made with only the purest metals and meticulously inspected in an in-house laboratory with state-of-the-art equipment, before the gold is formed and shaped with the same painstaking attention to quality. Rolex's commitment to excellence begins at the source.
The President bracelet
The ultimate refinement
This Lady-Datejust is offered on a prestigious President bracelet. Always in solid gold or platinum, the bracelets benefit from a concealed attachment beneath the bezel which ensures seamless visual continuity between the bracelet and case.
A new-generation concealed Crownclasp, opened with a hinged Rolex crown, adds the final aesthetic and functional touch to these sumptuous bracelets.
More Lady-Datejusttechnical details
Reference 279178
Model case
Oyster, 36 mm, yellow gold and diamonds
Oyster architecture
Monobloc middle case, screw-down case back and winding crown
Diameter
36 mm
Material
18 ct yellow 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, secure rapid-setting. Stop-seconds for exact 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
Material
18 ct yellow gold
Clasp
Concealed folding Crownclasp
Dial
Dial
White
Certification
Certification
Superlative Chronometer (COSC + Rolex certification after casing)
User guide
Learn how to set the time and other functions of your Rolex watch by consulting our user guides.
Download the user guide