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Rolex · Datejust 31

Strap for Datejust 31 White Gold Diamond / Jubilee Diamond / 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
Reference178159-0014
FamilyDatejust 31
MovementRolex caliber 2235 Hours, Minutes, Seconds | Date | Chronometer
CaseWhite Gold

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 178159-0014

Selected for the 16 mm lug width

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The Datejust 31 178159-0014, seen from the bench

The Rolex Datejust 31 ref. 178159-0014 is a 31mm mid-size dress watch in 18-karat white gold with a 16mm lug width. It features the automatic calibre 2235, a COSC-certified movement with 28,800 vph and approximately 48 hours of power reserve. The white gold Oyster case is water-resistant to 100 meters and includes the characteristic cyclops date window with instantaneous correction at midnight. The case measures 31mm in diameter with polished and brushed surfaces typical of high-end Rolex production. The lug width of 16mm is non-standard and requires specifically sized straps to ensure proper fitment and prevent wear.

Frequently asked questions

What is the lug width of the Rolex Datejust 31 178159-0014?

The Rolex Datejust 31 ref. 178159-0014 has a lug width of 16mm. This non-standard measurement requires straps specifically cut to 16mm to ensure a precise fit between the lugs and the strap, preventing mechanical play and premature wear.

What is the best strap for the Rolex Datejust 31 178159-0014?

For a white gold case of 31mm diameter, the most suitable straps are polished alligator (black or midnight blue for formal occasions) or shell cordovan for intensive daily wear. Vegetable-tanned calf leather in neutral tones is an excellent alternative for a less formal register. The lug width is 16mm.

How do you change the strap on the Rolex Datejust 31 178159-0014?

To replace the strap, a spring bar tool is required to remove the spring bars securing the strap to the case lugs. The procedure is straightforward but demands care to avoid scratching the white gold case. If in doubt, it is advisable to consult a watchmaker or the Casati Milano atelier.

Are there aftermarket straps compatible with the Rolex Datejust 31 178159-0014?

Yes. Milanostraps.it offers a selection of handcrafted aftermarket straps in 16mm lug width compatible with the Datejust 31 178159-0014. Straps are crafted to measure using selected leathers and are available in various finishes, with a full bespoke option through the Casati Milano atelier.

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

Longevity depends on the material and usage conditions. A shell cordovan strap with vegetable tanning can last 5–10 years when cared for properly and kept away from prolonged moisture and perspiration. Premium alligator leather offers comparable durability. All Casati Milano straps carry an 18-month warranty against manufacturing defects.

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