Rolex CollectionRolex Day-DateDay-Date 40

Reference

228239

Model Case

Oyster, 40 mm, white gold

Oyster Architecture

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

Diameter

40 mm

Material

18 ct white 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

3255, Manufacture Rolex

Precision

-2/+2 sec/day, after casing

Oscillator

Paramagnetic blue Parachrom hairspring. High-performance Paraflex shock absorbers

Escapement

Chronergy with optimized energy efficiency

Winding

Bidirectional self-winding via Perpetual rotor

Power Reserve

Approximately 70 hours

Bracelet

President, semi-circular three-piece links

Bracelet Material

18 ct white gold

Clasp

Concealed folding Crownclasp

Dial

Bright blue

Certification

Superlative Chronometer (COSC + Rolex certification after casing)

Rolex Day-Date | 228239 | Day-Date 40 | Coloured dial | Fluted bezel | Bright blue dial | 18 ct white gold | M228239-0007 | Men Watch | Rolex Official Retailer - Siam Swiss Rolex Day-Date | 228239 | Day-Date 40 | Coloured dial | Fluted bezel | Bright blue dial | 18 ct white gold | M228239-0007 | Men Watch | Rolex Official Retailer - Siam Swiss
Rolex Day-Date | 228239 | Day-Date 40 | Coloured dial | Fluted bezel | Bright blue dial | 18 ct white gold | M228239-0007 | Men 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 Day-Date 40.

Rolex Day-Date | 228239 | Day-Date 40 | Coloured dial | Fluted bezel | Bright blue dial | 18 ct white gold | M228239-0007 | Men Watch | Rolex Official Retailer - Siam Swiss

Bright blue 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 Day-Date | 228239 | Day-Date 40 | Coloured dial | Fluted bezel | Bright blue dial | 18 ct white gold | M228239-0007 | Men Watch | Rolex Official Retailer - Siam Swiss

18 ct white 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 Day-Date | 228239 | Day-Date 40 | Coloured dial | Fluted bezel | Bright blue dial | 18 ct white gold | M228239-0007 | Men 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 Day-Date 40

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 Day-Date 40 is the ultimate watch of prestige. Learn more about this model and how to set the time, date and day by watching the video.

The new Oyster Perpetual Day-Date 36 welcomes dials made of decorative stone in shimmering tones that evoke the atmosphere of the Mediterranean coast. Green aventurine, carnelian and turquoise are paired with watches in 18 ct Everose, yellow and white gold respectively.

As expressions of Rolex’s dial-making expertise, the new Day-Date 36 watches are also testament to the brand’s perfect mastery of the gem-setting art. This union of exceptional stones, gems and precious metals emphasizes the distinction and elegance of this prestigious watch.

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