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Rolex · Datejust 31

Strap for Datejust 31 Stainless Steel Fluted / Jubilee / Pink MOP Roman

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

Lug width

16mm
16 mm strapsAll Rolex
Lug width16 mm
Case diameter31 mm
Reference178274-0044
FamilyDatejust 31
MovementRolex caliber 2235 Hours, Minutes, Seconds | Date | Chronometer
CaseMother of Pearl | White Gold, Stainless Steel

Spring bar

Spring bars for Rolex

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

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Straps for the Datejust 31 178274-0044

Selected for the 16 mm lug width

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The Datejust 31 178274-0044, seen from the bench

The Datejust 31 represents the female version of the Rolex Datejust collection, with a 31mm case diameter. It is equipped with the automatic Caliber 2235 with chronometer certification and date function. The 16mm lugs complete the technical specifications of the model.

Frequently asked questions

What is the lug width of the Rolex Datejust 31 ref. 178274-0044?

The lug width is 16 millimetres. Measured between the two pins that anchor the strap to the case. This is the only correct dimension for this model.

Which strap do you recommend for the Datejust 31 178274-0044 with mother-of-pearl dial?

Alligator or vegetable-tanned calf leather. Black, dark brown or blue alligator conveys discrete elegance, whilst natural calf leather adds softness. We advise against shell cordovan as it may visually compete with the mother-of-pearl rather than complement it.

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

You need spring bar tools. Press the pin with the tool from one side to retract it, remove the old strap, align the new strap holes with the pins, and reinsert the pin until it clicks into place. Consult a watchmaker if you are unsure.

Is an aftermarket 16mm artisanal strap compatible with the 178274-0044?

Yes, provided it is made for 16mm lug width. Artisanal straps from reputable makers are 100% compatible and often superior to factory straps in material quality and finish.

How long does an artisanal leather strap last on a Datejust 31?

With moderate daily wear, 3-5 years. An alligator strap with vegetable tanning can last up to 7 years whilst developing a beautiful patina. Durability depends on humidity, intensive use and care.

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