Strap for Datejust 31 Stainless Steel/ Rose Gold / Diamond / Aubergine - Roman / Oyster

The lug width of the Rolex Datejust 31 278381rbr-0019 is 16 mm. This measurement refers to the internal distance between the two lugs on the case where the strap is installed. It is essential to verify this measurement before ordering an aftermarket strap, as even a 0.5 mm discrepancy would result in complete incompatibility.

For the Datejust 31 bicolour in Everose Rolesor, we recommend straps in alligator leather in brown, burgundy or cognac shades, or calf leather with vegetable tanning. These materials develop a natural patina over time and create elegant aesthetic contrast with the bicolour case. Avoid synthetic materials or saturated colours: a Datejust deserves authentic leather.

Strap replacement requires removal of the spring bars using a dedicated tool. Position your watch on a stable surface, gently compress the internal spring of each lug bar and slide the pin out of the case lugs. Align the new strap holes with the case holes, then reinsert the spring bar until it clicks into place. If uncertain, consult a specialist watchmaker.

Yes, any strap manufactured with a 16 mm lug width is compatible with your Datejust 31. Rolex lugs follow international standards. Construction quality and material selection depend on the aftermarket manufacturer: Milano Straps guarantees Haute Couture quality with carefully selected leather and Italian artisanal craftsmanship.

Durability depends on daily use, tanning method and maintenance. A high-quality alligator or calf leather strap resists 3-5 years of daily wear before requiring restoration. Natural leather develops patina progressively, acquiring aesthetic character over time. Protect it from stagnant water and periodically apply hydrating creams specifically formulated for leather.