Rolex CollectionRolex DatejustDatejust 31

Reference

278240

Model Case

Oyster, 31 mm, Oystersteel

Oyster Architecture

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

Diameter

31 mm

Material

Oystersteel

Bezel

Domed

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

Jubilee, five-piece links

Bracelet Material

Oystersteel

Clasp

Concealed folding Crownclasp

Dial

Pink

Certification

Superlative Chronometer (COSC + Rolex certification after casing)

Rolex Datejust | 278240 | Datejust 31 | Coloured dial | Pink Dial | Oystersteel | The Jubilee bracelet | M278240-0014 | Women Watch | Rolex Official Retailer - Siam Swiss Rolex Datejust | 278240 | Datejust 31 | Coloured dial | Pink Dial | Oystersteel | The Jubilee bracelet | M278240-0014 | Women Watch | Rolex Official Retailer - Siam Swiss
Rolex Datejust | 278240 | Datejust 31 | Coloured dial | Pink Dial | Oystersteel | The Jubilee bracelet | M278240-0014 | Women Watch | Rolex Official Retailer - Siam Swiss

Pink Dial

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 | 278240 | Datejust 31 | Coloured dial | Pink Dial | Oystersteel | The Jubilee bracelet | M278240-0014 | Women Watch | Rolex Official Retailer - Siam Swiss

Oystersteel

Rolex uses Oystersteel for its steel watch cases. Specially developed by the brand, Oystersteel belongs to the 904L steel family, alloys most commonly used in high-technology and in the aerospace and chemical industries, where maximum resistance to corrosion is essential. Oystersteel is extremely resistant, offers an exceptional finish once polished and maintains its beauty even in the harshest environments.

Rolex Datejust | 278240 | Datejust 31 | Coloured dial | Pink Dial | Oystersteel | The Jubilee bracelet | M278240-0014 | Women Watch | Rolex Official Retailer - Siam Swiss

The Jubilee 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 Jubilee, a supple and comfortable five-piece link metal bracelet, was designed and made especially for the launch of the Oyster Perpetual Datejust in 1945.

Rolex Datejust | 278240 | Datejust 31 | Coloured dial | Pink Dial | Oystersteel | The Jubilee bracelet | M278240-0014 | 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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