Rolex · Datejust 31

Strap for Datejust 31 Yellow Gold Domed / President / Champagne

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
Reference178248-0048
FamilyDatejust 31
MovementRolex caliber 2235 hours, minutes, seconds | date | chronometer
CaseYellow Gold

Spring bar

Spring bars for Rolex

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

Straps for the Datejust 31 178248-0048

Selected for the 16 mm lug width

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The Datejust 31 178248-0048, seen from the bench

The Datejust 31 reference 178248-0048 features the automatic caliber 2235 with official chronometer certification. It indicates hours, minutes, seconds and date through the characteristic date window at 3 o'clock. 31mm case with 16mm lugs, proportioned for smaller wrists.

Frequently asked questions

What is the lug width of the Rolex Datejust 31 178248-0048?

The lug width of the Rolex Datejust 31 178248-0048 is 16 millimetres. This measurement represents the distance between the case lugs where the strap attaches, measured between the centres of the horizontal pins. Verifying this compatibility is essential before purchasing an aftermarket strap.

Which strap is best suited for the yellow gold Datejust 31?

For the yellow gold 18 carat Datejust 31, an alligator strap represents the formal choice par excellence: the natural scales of the leather provide unrivalled elegance. Alternatively, vegetable-tanned calf offers superior versatility through its natural patina development over time, maintaining aesthetic coherence with the yellow gold case.

How do I change the strap on my Rolex Datejust 31?

Strap replacement requires specific tools: a spring bar tool to remove the elastic pins from the case lugs. Position the watch on a soft surface, gently lift one spring bar at a time, extract the pin, remove the worn strap, and insert the new one by aligning the attachment holes with precision. Alternatively, authorised repairers and bespoke ateliers such as Casati Milano provide this service professionally.

Can I use an aftermarket strap on my Datejust 31 178248-0048?

Yes, any strap with a 16mm lug width is compatible with the Datejust 31 178248-0048. Artisanal aftermarket straps offer construction quality comparable to original Rolex products, with the advantage of aesthetic customisation and specific materials. Always verify the lug width before purchase to ensure precise compatibility.

What is the average lifespan of a leather strap on a Rolex watch?

A high-quality artisanal leather strap maintains structural integrity for 3-5 years of daily use, varying according to climate factors, direct sun exposure, and personal perspiration rates. Vegetable tanning, employed in our Casati Milano straps, guarantees greater longevity compared to synthetic tanning methods. An 18-month warranty on manufacturing defects provides protection during the critical initial period.

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