Strap for Datejust 31 Stainless Steel/ Rose Gold / Domed - Diamond / Grey / Jubilee

The Rolex Datejust 31 ref. 278341RBR-0018 has a lug width of 16 mm. This measurement, best verified with a digital calliper placed internally between the two lugs, determines the strap width at the point of attachment to the case. The standard taper brings the width down to 14 mm at the buckle end.

For the Datejust 31 278341RBR-0018 in Everose gold and Oystersteel with a diamond-set bezel, the most appropriate materials are cross-grain alligator (polished to emphasise the precious character, matte for a more understated look), vegetable-tanned calf leather for intensive daily wear, and shell cordovan for those who prioritise longevity and patina. The most effective colour pairings are bordeaux, cognac, and midnight blue.

To replace the strap on a Rolex Datejust 31, a fine-tipped springbar tool is required. The springbars are fitted inside the case lugs and must be compressed laterally to release the strap. It is advisable to work on a soft, scratch-resistant surface. If in doubt, entrust the operation to a qualified watchmaker or to the Casati Milano atelier to avoid any damage to the Everose gold surfaces.

Yes. All straps with a lug width of 16 mm and a taper to 14 mm are compatible with the Rolex Datejust 31 278341RBR-0018. milanostraps.it offers a curated selection of handcrafted 16mm straps in fine leathergoods, with buckles and deployant clasps available in steel or rose gold PVD-coated metal to coordinate with the Rolesor case.

The lifespan of a leather strap depends on the material, maintenance routine, and frequency of use. A quality alligator or shell cordovan strap, properly cared for — periodic cleaning, application of a natural conditioner, rotation with other straps — can last between 3 and 7 years whilst retaining its structural and aesthetic integrity. Full-grain vegetable-tanned calf leather offers a comparable lifespan, developing a patina over time that enhances its aesthetic value.