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

The lug width of the Rolex Datejust 31 ref. 278343rbr-0015 is 16mm. This measurement is determined by the 31mm Rolesor yellow gold case and should be verified using a digital calliper placed between the lugs at the point of strap attachment, ensuring a precise fit with no lateral play.

For the Datejust 31 278343rbr-0015 in yellow Rolesor with a diamond-set bezel, an alligator leather strap with natural grain or a polished shell cordovan strap are the most coherent choices for the watch's formal register. Vegetable-tanned leather suits more dynamic daily wear, while vulcanised rubber offers a sporting alternative without compromising the proportions. The required lug width is 16mm.

To replace the strap on a Rolex Datejust 31, a fine-tipped spring bar tool is required. The spring bars are located inside the case lugs and must be compressed laterally to release the strap. It is advisable to work on a soft surface to avoid scratching the yellow gold case or the bezel. If in doubt, the operation can be carried out by a watchmaker or in an atelier.

Yes, high-quality aftermarket straps compatible with the Rolex Datejust 31 ref. 278343rbr-0015 are available. The essential parameter is a lug width of 16mm. Milanostraps.it offers a curated selection of handcrafted straps in various materials, made specifically for this lug width, with options for a buckle or deployant clasp in steel or precious metal.

The lifespan of a leather strap depends on the material, care, and intensity of use. A quality alligator or shell cordovan strap, with proper maintenance (nourishing cream, protection from prolonged moisture), can last between three and seven years while retaining its structural and aesthetic integrity. Vegetable-tanned leather tends to develop a distinctive patina over time. The Casati Milano guarantee covers 18 months against manufacturing defects.