Strap for Datejust 31 Stainless Steel Fluted / Jubilee / Pink - Diamond

The Rolex Datejust 31 ref. 278274-0032 has a lug width of 16mm. This is the specific measurement Rolex uses on this case diameter to maintain correct visual proportions between the case and strap. When purchasing an aftermarket strap, it is essential to confirm that the stated width matches the actual distance between the lugs and that the strap ends are shaped to fit the curved profile characteristic of Oyster cases.

For the Datejust 31 in steel and white gold, a vegetable-tanned alligator strap is the most coherent choice given the calibre of the timepiece: it develops a personal patina over time and complements the two-tone case beautifully. Smooth or grained calf leather is a practical alternative for everyday wear. For less formal settings, shell cordovan offers a naturally compact, lustrous surface. The choice of colour — burgundy, midnight blue or slate grey — depends on the desired chromatic pairing with the dial.

Removing the original strap from the Datejust 31 requires a fine-tipped spring bar tool. The spring bars sit inside the lugs: insert the tool tip into the side slot and lever gently to release the bar and free the strap. Care must be taken to avoid scratching the case. It is advisable to work on a soft surface and, if in any doubt, to entrust the operation to a watchmaker or to the Casati Milano atelier for a safe and precise replacement.

Yes. Several artisan manufacturers produce aftermarket straps compatible with the Datejust 31, provided they respect the 16mm lug width and the curved end geometry typical of Oyster cases. Milano Straps offers a curated selection of 16mm straps in artisan leather, NATO and rubber, crafted with shaped ends to ensure a precise fit without play or undue pressure on the lugs.

The lifespan of a leather strap depends on the material, tanning method and conditions of use. A vegetable-tanned alligator strap, with regular care — wiping with a dry cloth, occasional application of a neutral conditioner and storage away from heat sources — can last over five years while retaining an excellent appearance. Calf leather generally lasts between two and four years. Shell cordovan ranks among the most durable owing to the density of its fibre. Constant moisture and perspiration are the main causes of deterioration; leather straps should not be worn during intense physical activity or water exposure.