Strap for Datejust 31 Rolesor Everose Domed / Jubilee / MOP Roman

The Rolex Datejust 31 reference 178241-0057 has a lug width of 16mm. This measurement is taken with a digital calliper inserted between the lugs at the point of contact with the case. Any aftermarket strap must match this dimension precisely to ensure a correct, play-free fit.

For the Datejust 31 with a mother-of-pearl dial and stainless steel/Everose Gold case, the most suitable options are vegetable-tanned alligator (regular grain, in bordeaux or midnight blue) or polished box calf for a more urban aesthetic. Shell cordovan develops a personal patina over time that complements the iridescence of the mother-of-pearl beautifully. The required lug width is 16mm.

To replace the strap on the Datejust 31, use a fine-tipped springbar tool inserted into the inner groove of the lug to compress and release the spring bars. Place the watch face-down on a soft cloth to prevent case scratches. The operation is fully reversible and requires no movement or caseback intervention. Standard 16mm spring bars are widely available.

Yes. Any strap with a 16mm lug width and standard spring bars is compatible with the Datejust 31. Milano Straps offers handcrafted straps in alligator, calf leather, shell cordovan, and rubber, all made with straight ends suited to Rolex lug geometry. Closing options include a traditional buckle or a deployant clasp in steel or rose gold.

The lifespan of a leather strap depends on material quality and daily use. A high-grade vegetable-tanned alligator strap, properly maintained (nourishing cream every 2–3 months, avoiding prolonged exposure to water and perspiration), retains its structural and aesthetic integrity for 3–5 years. Shell cordovan, due to its dense fibre structure, can last over 5 years while developing an increasingly distinctive patina. Milano Straps provides an 18-month warranty against manufacturing defects.