Strap for Datejust 31 Rose Gold / Diamond / Rose / Oyster

The Rolex Datejust 31 reference 278285rbr-0017 has a lug width of 16mm. This measurement should be taken with a digital calliper directly between the lugs at the strap attachment point. It is a non-standard size compared to larger Datejust models, so it is essential to verify this before purchasing any aftermarket strap.

For the Datejust 31 in Everose gold with a diamond-set bezel, the most suitable materials are polished alligator in bordeaux or cognac tones, shell cordovan, and vegetable-tanned calfskin. These materials complement the warm tone of Everose gold and the refinement of the bezel. A deployant clasp in rose gold completes the pairing on the metal side.

To replace the strap on the Datejust 31, a springbar tool is required to remove the spring bars securing the strap to the 16mm lugs. Care must be taken to avoid scratching the Everose gold case. It is advisable to work on a soft surface and, if in doubt, to consult a watchmaker or the Casati Milano atelier for professional strap fitting.

Yes, there are handcrafted aftermarket straps compatible with the 16mm lug width of the Datejust 31. Milanostraps.it offers a selection of leather, alligator, shell cordovan, and rubber straps made to measure for this reference. It is essential that the attachment end is cut precisely to 16mm and that the strap tips are profiled to follow the curvature of the Rolex case lugs.

The lifespan of a leather strap depends on the material, care, and frequency of use. A high-quality alligator or shell cordovan strap, with periodic conditioning and rotation with other straps, can last between 3 and 6 years while maintaining its integrity. Vegetable-tanned calfskin develops a patina over time but tends to show wear more quickly when exposed to perspiration or moisture. All Casati Milano straps carry an 18-month warranty against manufacturing defects.