Strap for Datejust 31 Rose Gold / Diamond / Grey - Roman / President

The Rolex Datejust 31 reference 278285rbr-0027 has a lug width of 16mm. This measurement is fixed by the case architecture: any replacement strap — bespoke or OEM — must measure exactly 16mm at the attachment point to ensure correct fitment and secure springbar retention.

For an 18-carat Everose gold case with a diamond-set bezel, the most coherent materials are hornback alligator leather in bordeaux or cognac tones, Horween shell cordovan for a smooth finish with a progressive patina, and vegetable-tanned calf leather for everyday elegance. A deployant clasp in rose gold completes the pairing and extends the strap's lifespan.

The Datejust 31 strap is secured to the lugs via standard 1.5mm springbars. To remove it, use a forked springbar tool: insert the tip between the lug and the strap, compress the spring, and slide out the bar. The process requires no professional tools but should be carried out carefully to avoid scratching the gold case. Place the dial face-down on a soft cloth during the swap.

Yes. Any 16mm strap with standard springbars is technically compatible with this reference. milanostraps.it offers a curated selection of handcrafted straps in alligator, shell cordovan, calf leather and rubber, made specifically for 16mm lugs with finishes and closures suited to the Everose gold case. Casati Milano straps are crafted to order with millimetre-precise tailoring.

The lifespan of a leather strap depends on leather quality, daily care and frequency of use. A handcrafted alligator or shell cordovan strap, kept away from water, excessive perspiration and direct heat, retains its structural and aesthetic integrity for 3 to 5 years with regular wear. Casati Milano straps carry an 18-month warranty against manufacturing defects and can be treated with appropriate leather conditioners to extend their service life.