Strap for Datejust 31 Stainless Steel/ Rose Gold / Fluted / Silver - Floral / Oyster

The Rolex Datejust 31 ref. 278271-0031 has a lug width of 16mm. This measurement is specific to the 31mm Oyster case and differs from the 28mm variant (13mm) and the 36mm version (20mm). To verify it, use a digital calliper to measure the internal clearance between the case lugs with the strap removed.

For the Datejust 31 in Rolesor Everose, a belly alligator strap with a regular grain pattern in burgundy, taupe or chocolate tones complements the warmth of the 18ct Everose gold. Vegetable-tanned calf leather is the preferred choice for those seeking a natural patina over time. Shell cordovan suits intensive daily wear due to its exceptional structural resilience. All straps must have a 16mm attachment width.

Strap replacement requires a double-tipped spring bar tool to remove the 16mm spring bars seated within the Oyster case lugs. It is advisable to work on a soft surface to avoid scratching the Rolesor case. Alternatively, Casati Milano offers an in-atelier fitting service by appointment, including verification of correct spring bar tension.

Yes. Any strap with a 16mm attachment width and standard spring bars is compatible with the Datejust 31 ref. 278271-0031. Milano Straps offers a curated selection of handcrafted straps in alligator, calf leather, shell cordovan and rubber, made specifically for 16mm lugs, with a choice of pin buckle or deployant clasp in steel or rose gold.

Longevity depends on the material and frequency of use. A quality alligator strap, worn in rotation and properly maintained (conditioning cream every 3–4 months, limited water exposure), retains structural and aesthetic integrity for 3–5 years. Vegetable-tanned calf leather develops a characteristic patina but may require replacement after 2–3 years of intensive daily wear. Shell cordovan is the most durable option, with high mechanical resistance and a patina that improves with age.