Rolex · Datejust 31
Strap for Datejust 31 Stainless Steel Fluted / Oyster / Black - 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 278274-0001
Selected for the 16 mm lug width
The Datejust 31 278274-0001, seen from the bench
Frequently asked questions
What is the lug width of the Rolex Datejust 31 278274-0001?
The Rolex Datejust 31 reference 278274-0001 has a lug width of 16mm. This measurement refers to the internal distance between the horizontal lugs of the case and is the key parameter for selecting a compatible aftermarket strap. It is a specific size that does not match the lug width of the Datejust 36mm or 41mm variants.
What is the best strap for the Rolex Datejust 31 278274-0001?
For the Datejust 31 278274-0001 in steel and white gold, an alligator strap with vegetable tanning is the most formally coherent choice, as the belly grain complements the fluted bezel. Shell cordovan is an elegant alternative for those who prefer a smooth surface. Both options must be fitted to the specific 16mm lug width of this model.
How do you change the strap on a Rolex Datejust 31?
To replace the strap on a Rolex Datejust 31, a spring bar tool is required. The spring bars connecting the strap to the case lugs are compressed laterally to allow removal. Care must be taken to avoid scratching the steel or white gold lugs during the operation. If in doubt, it is advisable to consult a watchmaker or a specialist atelier.
Are there aftermarket straps compatible with the Rolex Datejust 31 278274-0001?
Yes, high-quality aftermarket straps compatible with the Rolex Datejust 31 278274-0001 are available. The essential parameter is the 16mm lug width. Milano Straps offers a selection of handcrafted straps in various leathers and materials, available bespoke or ready to order online, all fitted to this specific 16mm attachment.
How long does a leather strap last on a Rolex Datejust 31?
The lifespan of a leather strap depends on the material, the quality of the tanning process, and daily use. A hand-crafted alligator strap with vegetable tanning can last between 3 and 6 years with standard care, avoiding prolonged exposure to water and perspiration. Shell cordovan tends to last even longer due to the compactness of its fibres. Replacing the buckle or deployant clasp does not affect the lifespan of the strap itself.
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

