Rolex · Datejust 31
Strap for Datejust 31 Rolesor Everose Domed Diamond / Oyster / White Diamond
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 178341-0037
Selected for the 16 mm lug width
The Datejust 31 178341-0037, seen from the bench
Frequently asked questions
What is the lug width of the Rolex Datejust 31 ref. 178341-0037?
The Rolex Datejust 31 ref. 178341-0037 has a lug width of 16mm. This measurement should be taken with a digital calliper between the two lugs, flush against the caseback. Only a strap with a 16mm lug end will fit without forcing.
What is the best strap for the Rolex Datejust 31 178341-0037?
For the Datejust 31 in Rolesor Everose, alligator leather in bordeaux or cognac tones offers the most coherent pairing with the watch's formal character. Vegetable-tanned calf leather or shell cordovan are excellent alternatives, developing a refined patina over time. A deployant clasp in rose gold completes the combination with material consistency.
How do you change the strap on a Rolex Datejust 31?
To remove the original bracelet or strap, a fine-tipped springbar tool is required. The springbars are compressed by pressing against the inner lug seat. Care must be taken to avoid scratching the polished Everose gold lug surfaces. It is advisable to have the swap performed by a skilled watchmaker or to use professional-grade tools.
Are there aftermarket straps compatible with the Rolex Datejust 31 178341-0037?
Yes. Aftermarket straps with a 16mm lug width and quality artisan construction are fully compatible with the Datejust 31 ref. 178341-0037. Milano Straps offers a curated selection in alligator, calf leather, shell cordovan and rubber, all hand-finished and available with a buckle or deployant clasp in steel or rose gold.
How long does a leather strap last on a Rolex Datejust 31?
The lifespan of a leather strap depends on the quality of the hide, the tanning method and daily wear conditions. An artisan-crafted alligator or shell cordovan strap with vegetable tanning and hand finishing can last between 3 and 6 years with proper care: avoid prolonged contact with water and perspiration, and store the watch without the strap under tension. Milano Straps 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

