Rolex CollectionRolex DatejustDatejust 31

Reference

278278

Model Case

Oyster, 31 mm, yellow gold

Oyster Architecture

Monobloc middle case, screw-down case back and winding crown

Diameter

31 mm

Material

18 ct yellow gold

Bezel

Fluted

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

Perpetual, mechanical, self-winding

Calibre

2236, Manufacture Rolex

Precision

-2/+2 sec/day, after casing

Oscillator

Syloxi hairspring in silicon with patented geometry. High-performance Paraflex shock absorbers

Winding

Bidirectional self-winding via Perpetual rotor

Power Reserve

Approximately 55 hours

Bracelet

President, semi-circular three-piece links

Bracelet Material

18 ct yellow gold

Clasp

Concealed folding Crownclasp

Dial

Olive green set with diamonds

Gem-setting

Large VI set with 11 diamonds

Certification

Superlative Chronometer (COSC + Rolex certification after casing)

Rolex Datejust | 278278 | Datejust 31 | Coloured dial | Olive-Green Dial | Fluted bezel | 18 ct yellow gold | M278278-0030 | Women Watch | Rolex Official Retailer - Siam Swiss Rolex Datejust | 278278 | Datejust 31 | Coloured dial | Olive-Green Dial | Fluted bezel | 18 ct yellow gold | M278278-0030 | Women Watch | Rolex Official Retailer - Siam Swiss
Rolex Datejust | 278278 | Datejust 31 | Coloured dial | Olive-Green Dial | Fluted bezel | 18 ct yellow gold | M278278-0030 | Women Watch | Rolex Official Retailer - Siam Swiss

Olive-Green Dial

This dial features a large VI set with 11 diamonds. 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.

Rolex Datejust | 278278 | Datejust 31 | Coloured dial | Olive-Green Dial | Fluted bezel | 18 ct yellow gold | M278278-0030 | Women Watch | Rolex Official Retailer - Siam Swiss

Fluted bezel

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 Datejust 31.

Rolex Datejust | 278278 | Datejust 31 | Coloured dial | Olive-Green Dial | Fluted bezel | 18 ct yellow gold | M278278-0030 | Women Watch | Rolex Official Retailer - Siam Swiss

18 ct yellow gold

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.

Rolex Datejust | 278278 | Datejust 31 | Coloured dial | Olive-Green Dial | Fluted bezel | 18 ct yellow gold | M278278-0030 | Women Watch | Rolex Official Retailer - Siam Swiss

MODEL AVAILABILITY

All Rolex watches are assembled by hand with the utmost care to ensure exceptional quality. Such high standards naturally restrict Rolex production capacity and, at times, the demand for Rolex watches outpaces this capacity.

Therefore, the availability of certain models may be limited. New Rolex watches are exclusively sold by Official Rolex Retailers, who receive regular deliveries and independently manage the allocation and sales of watches to customers.

Siam Swiss is proud to be part of the worldwide network of Official Rolex Retailers and can provide information on the availability of Rolex watches.

How to set your Datejust 31

Synonymous with excellence and reliability, Rolex watches are designed for everyday wear, and depending on the model, perfectly suited for a wide range of sports and other activities. Built to last, these timepieces are characterized by their distinctive and timeless aesthetics. The Oyster Perpetual Datejust 31 is the expression of everlasting appeal. Learn more about this watch and how to set the time and date by watching the video.

Any day can leave a lasting mark on our lives and set the stage for new aspirations. Since its creation in 1945, the Datejust has continued to reinvent itself while symbolizing Rolex’s definition of classic elegance. A milestone in watchmaking history, it was the first self-winding waterproof chronometer wristwatch to feature a window displaying the date. Magnified by the Cyclops lens, these numbers are a reminder that though 24 hours mark a day, it’s on us to make those a date to remember.

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