Strap for Datejust 31 Stainless Steel / Yellow Gold / Domed / White - Roman / Oyster

The Rolex Datejust 31 278243-0001 features a lug width of 16 millimetres. This dimension is specific to 31mm Datejust models in Rolesor or steel cases. Measurement is taken from the inner shoulder of one lug attachment to the other, spanning the horizontal pins that support the strap.

For the 278243-0001 in Rolesor, we recommend vegetable-tanned alligator for formal contexts—the regular scale texture enhances the bi-metallic case's sobriety. For daily versatility, box calf offers contemporary elegance with natural patina development. Vegetable-tanned shell cordovan represents the pinnacle in density and aesthetic evolution over time. For those seeking sportiness without compromise, 16mm NATO fabric transforms the Datejust into a resilient urban instrument.

Changing the strap on the 278243-0001 requires two tools: a spring bar tool and a soft surface to protect the case. Position the watch with lugs facing upward, gently insert the tool into the gap between lug and pin, lift slightly to release the spring bar, remove the old strap. Repeat on the opposite side. Insert the new strap, aligning the holes with the seats, press the pin until it clicks firmly. Verify proper seating on both sides.

Yes, any strap with a 16-millimetre lug width is compatible with the Datejust 31 278243-0001, provided it features standard 1.5mm pins. Always verify the strap is certified for this width: undersized straps leave unsightly gaps between strap and case, oversized straps risk damaging the lugs. Artisanal straps in alligator, calf or shell cordovan offer superior aesthetic alternatives to the original Rolex strap, with customisation options for colour and finishing.

A quality leather strap, made from materials such as vegetable-tanned alligator, box calf or shell cordovan, typically lasts 3-5 years with continuous daily wear. Longevity depends on factors including frequency of use, exposure to moisture, perspiration and sunlight, as well as artisanal craftsmanship quality. Leather ages naturally, developing patina: this is not deterioration but aesthetic evolution. Regular maintenance—gentle cleaning with a damp soft cloth—significantly extends strap life.