Rolex · Datejust 31

Strap for Datejust 31 Stainless Steel / Yellow Gold / Fluted / MOP / Jubilee

Takes 16 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width16 mm
Case diameter31 mm
Reference278273-0028
FamilyDatejust 31
MovementRolex caliber 2236 hours, minutes, seconds | date | chronometer
Year2019
CaseMother of Pearl | Yellow Gold, Stainless Steel

Spring bar

Spring bars for Rolex

The right category for this model · choose the 16 mm size

Straps for the Datejust 31 278273-0028

Selected for the 16 mm lug width

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The Datejust 31 278273-0028, seen from the bench

The Rolex Datejust 31 ref. 278273-0028 combines a 31 mm stainless steel Oyster case with 18-karat yellow gold fluted bezel and lugs. It features a mother-of-pearl dial with the Rolex caliber 2236 movement, certified chronometer with Syloxi balance wheel. Water-resistant to 100 metres, the watch includes a Cyclops magnifier over the date window at 3 o'clock. Strap size is 16 mm.

Frequently asked questions

What is the lug width of the Rolex Datejust 31 278273-0028?

The Rolex Datejust 31 ref. 278273-0028 has a lug width of 16 mm. It is essential to measure the internal gap between the lugs with a calliper before purchasing any aftermarket strap, as even models within the same Datejust family may differ in lug width.

What is the best strap for the Rolex Datejust 31 278273-0028 with mother-of-pearl dial?

For the Datejust 31 278273-0028 with a mother-of-pearl dial and yellow gold details, the most suitable materials are polished alligator in cognac or honey tones, vegetable-tanned calf leather, and shell cordovan. These materials complement the iridescent reflections of the dial and harmonise with the gold case accents without overpowering them.

How do you change the strap on a Rolex Datejust 31?

To replace the strap on a Datejust 31, use a dedicated springbar tool or a flat-tip implement inserted into the lateral lug slot to compress the springbar ends. Always work on a soft surface to protect the case from scratches. If in doubt, Casati Milano offers a professional fitting service at the atelier.

Are there aftermarket straps compatible with the Rolex Datejust 31 278273-0028?

Yes. Aftermarket straps with a 16 mm width and straight or slightly tapered ends are compatible with the Rolex Datejust 31 278273-0028. It is important to select makers who shape the strap ends specifically for Rolex lugs, ensuring a precise fit with no visible gaps between the strap and the case.

How long does a leather strap last on a Rolex Datejust 31?

Longevity depends on the material and frequency of wear. A high-quality alligator strap, properly maintained, typically lasts 3 to 5 years; vegetable-tanned calf leather develops a distinctive patina over time and can last 2 to 4 years with regular care. Shell cordovan, due to its dense and compact structure, is among the most durable options. Prolonged exposure to water and perspiration should be avoided to maximise service life.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only