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. 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.

Gender	Woman
Brand	Rolex
Model No.	278278
Movement	Perpetual, mechanical, self-winding
Calibre	2236, Manufacture Rolex
Power reserve	Approximately 55 hours
Precision	-2/+2 sec/day, after casing
Case diameter	31 mm
Dial	Olive green set with diamonds
Gem settings	Diamonds in 18 ct gold settings
Bezel	Fluted
Glass Material	Scratch-resistant sapphire, Cyclops lens over the date
Case Material	Oyster, 31 mm, yellow gold
Water Resistance	Waterproof to 100 metres / 330 feet
Bracelet material	President, semi-circular three-piece links
Clasp	Concealed folding Crownclasp
Winding Crown	Screw-down, Twinlock double waterproofness system
Winding	Bidirectional self-winding via Perpetual rotor
Functions	Centre hour, minute and seconds hands. Instantaneous date with rapid setting. Stop-seconds for precise time setting
Oscillator	Syloxi hairspring in silicon with patented geometry. High-performance Paraflex shock absorbers
Oyster Architecture	Monobloc middle case, screw-down case back and winding crown
Condition	Brand New In Box (BNIB)
What's Inside Box	1x Rolex Datejust 31 - 278278 Olive Green Diamond Dial Bracelets President, semi-circular three-piece links 1x Official Rolex Certificate Card 1x Rolex Manual Book 1x Rolex Hang Tag 1x Watch Box