Rolex · Datejust 31

Strap for Datejust 31 Rolesor Yellow Fluted / Oyster / MOP

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
Reference178273-0038
FamilyDatejust 31
MovementRolex caliber 2235 hours, minutes, seconds | date | chronometer
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 178273-0038

Selected for the 16 mm lug width

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The Datejust 31 178273-0038, seen from the bench

The Datejust 31 reference 178273-0038 features the Rolex caliber 2235 automatic movement with official chronometer certification. The watch has hour, minute, second and date functions with a 31mm case. The lugs measure 16mm in width.

Frequently asked questions

What is the lug width of the Rolex Datejust 31 178273-0038?

The Rolex Datejust 31 ref. 178273-0038 has a lug width of 16mm. This measurement is taken between the two lower lugs of the case and is essential for selecting a compatible aftermarket strap with the correct spring bar fit.

What is the best strap for the Rolex Datejust 31 178273-0038?

For the Datejust 31 178273-0038 in Rolesor configuration with a mother-of-pearl dial, a vegetable-tanned alligator strap is the most coherent choice for formal wear. Smooth or grained calf leather is preferable for daily use, whilst vulcanised rubber suits sporting contexts. In all cases, the correct width is 16mm.

How do you change the strap on a Rolex Datejust 31 178273-0038?

To replace the strap or bracelet on the Datejust 31 178273-0038, the spring bars securing the strap to the case lugs must be removed using a spring bar tool inserted into the small hole on the lug flange. Care should be taken to avoid scratching the yellow gold lug surfaces. If in doubt, it is advisable to consult a professional watchmaker.

Are there compatible aftermarket straps for the Rolex Datejust 31 178273-0038?

Yes, a wide range of aftermarket straps with a 16mm width are compatible with the Datejust 31 178273-0038. Milano Straps offers handcrafted options in alligator, calf leather, shell cordovan and rubber, with contrast or tone-on-tone stitching and stainless steel buckles. Dimensional compatibility is ensured by the standard 16mm lug width.

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

The lifespan of a leather strap depends on the material, care and frequency of use. A quality alligator strap with vegetable tanning and artisanal finishing can last between 3 and 5 years with regular wear. Avoiding prolonged exposure to water, perspiration and UV rays significantly extends the strap's life. Shell cordovan generally offers greater durability than standard bovine leather.

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