Rolex · Datejust 31
Strap for Datejust 31 Rose Gold / Fluted / Grey / Oyster
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 278275-0026
Selected for the 16 mm lug width
The Datejust 31 278275-0026, seen from the bench
Frequently asked questions
What is the lug width of the Rolex Datejust 31 278275-0026?
The Rolex Datejust 31 ref. 278275-0026 has a lug width of 16mm. This measurement should be taken using a digital calliper positioned internally between the two lugs, flush against the case, to ensure a correct tolerance of ±0.2mm when selecting an aftermarket strap.
What is the best strap for the Rolex Datejust 31 278275-0026?
For the Datejust 31 in Everose gold, a vegetable-tanned alligator belly strap in bordeaux, cognac or taupe tones is the most coherent choice with the watch's formal register. Shell cordovan is a premium alternative for those seeking a dense, polished surface. For everyday wear, box-grain calfskin offers excellent durability and develops a distinguished patina over time.
How do you change the strap on a Rolex Datejust 31?
Strap replacement on the Datejust 31 is carried out using standard 16mm springbars. It is advisable to use a fine-tipped springbar tool to avoid scratching the Everose gold lugs. The operation requires care, as the precious metal lugs are susceptible to surface abrasion. Alternatively, the operation can be entrusted to a watchmaker or to Casati Milano atelier for a risk-free replacement.
Are there aftermarket straps compatible with the Rolex Datejust 31 278275-0026?
Yes, numerous aftermarket straps are compatible with the Datejust 31, provided they conform to the 16mm lug width. Milano Straps offers a curated selection of handcrafted leather, rubber and nylon straps specifically built for this dimension, with a bespoke option through Casati Milano atelier for custom finishes and personalised fittings.
How long does a leather strap last on a Rolex Datejust 31?
The lifespan of a leather strap depends on the material and usage conditions. A quality vegetable-tanned alligator strap, used with care and rotated regularly, can last between three and seven years while maintaining structural integrity. Shell cordovan offers superior longevity due to the density of its fibres. Prolonged contact with water and perspiration should be avoided, and a leather conditioner applied periodically. Casati Milano straps carry an 18-month guarantee 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.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only

