Rolex · Datejust 31
Strap for Datejust 31 Rolesor Everose Fluted / Oyster / Purple Roman
Takes 16 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
Straps for the Datejust 31 178271-0076
Selected for the 16 mm lug width
The Datejust 31 178271-0076, seen from the bench
Frequently asked questions
What is the lug width of the Rolex Datejust 31 ref. 178271-0076?
The lug width is 16mm. This measurement was chosen by Rolex to maintain correct visual proportions relative to the 31mm case diameter. To measure accurately, place a digital calliper between the two lug attachments (measuring only the external edge-to-edge distance) and the result will consistently be 16mm. Any variation indicates incorrect measurement technique.
Which strap is most suitable for the Datejust 31 178271-0076?
The ideal strap depends on usage and dial configuration. For formal occasions, we recommend alligator with vegetable tanning in cognac tone (if champagne dial) or black (if white/black dial). Calf leather offers discreet elegance with superior water resistance. Shell cordovan is perfect for those desiring stronger character. For daily versatility, FKM rubber or heavyweight cotton NATO maintains sportiness without aesthetic compromise.
How do I change the strap on my Rolex Datejust 31?
Strap replacement requires a spring bar tool to extract and insert the strap from the watch case lugs. Position the watch case-side up, gently insert the tool within the lug, compress it to release the original strap's pin, and withdraw. Reverse the procedure to install the new strap, ensuring the pins are fully secured. If inexperienced, strap-changing service at Casati Milano is recommended to prevent damage.
Are quality aftermarket straps available for the 178271-0076?
Yes, the Datejust 31 is one of the most versatile Rolex models regarding aftermarket strap options. All straps with 16mm lug width are compatible. Milano Straps offers a comprehensive collection of high-quality artisanal straps in alligator, calf, shell cordovan, NATO and rubber, with bespoke crafting available at Casati Milano atelier by appointment.
How long does a natural leather strap last on a watch like the Datejust 31?
A professional-quality strap with vegetable tanning and artisanal craftsmanship has a lifespan of 3-5 years with daily wear. Longevity depends on moisture exposure, sunlight and frequency of use. Straps crafted at Casati Milano, thanks to material quality and construction standards, carry an 18-month warranty on manufacturing defects and maintain excellent aesthetic appearance over time through naturally developing patina.
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.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only