Strap for Datejust 31 Stainless Steel Diamond / Jubilee / Black - Roman

The lug width of the Rolex Datejust 31 278384rbr-0002 is precisely 16mm. This dimension is specific to 31mm Datejust models and is determined by the proportion between the case diameter and the space available between the lugs. To verify strap compatibility, measure the distance between the lugs from their internal base. Milano Straps' 16mm straps are selected to guarantee maximum geometric compatibility with this model.

For the Rolex Datejust 31 with white gold and steel case, alligator is the most refined and versatile choice. The fine grain amplifies the perception of preciousness without competing with the diamond-set bezel, and the patina that develops over time creates a personal bond with the timepiece. Shell cordovan offers an elegant alternative with extraordinary durability, whilst natural vegetable-tanned leather guarantees fascinating ageing. For a sportier aesthetic, a canvas NATO strap with leather detailing is perfect.

Strap replacement requires removal of the spring bars—the small metal pins that anchor the strap to the lugs. Use a specialised tool to gently press the inner pin of the spring bar, lifting the outer end from the lug hole. Once released, the strap detaches easily. Insert the new strap by aligning the holes with the spring bar, then press until you hear the anchoring click. For a risk-free operation, Casati Milano offers professional strap change service by appointment.

Yes, provided the lug width is 16mm. Artisanal straps from Milano Straps, produced to the same technical specifications as genuine Rolex straps (thickness, leather quality, lug finishing), are completely compatible. They guarantee identical anchoring geometry thanks to standard spring bars. Compatibility is total; the difference lies in leather quality, aesthetic customisation, and alignment with personal style.

The lifespan of a leather strap depends on material, usage, and maintenance. Alligator, when properly maintained, lasts 5-7 years under daily wear conditions. Shell cordovan is even more durable, with naturally self-polishing patina for 8-10 years. Vegetable-tanned leather has an average life of 4-5 years, as the leather breathes more actively. Casati Milano guarantees 18 months against all manufacturing defects, and offers regeneration and spring bar replacement services to extend strap lifespan.