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

The lug width of the Rolex Datejust 31 reference 278241-0023 is 16mm. This measurement should be taken with a digital calliper positioned inside the lugs, parallel to the case. It is a specific measurement for this 31mm family and determines compatibility with any aftermarket or replacement strap.

The optimal choice depends on the context of use. For formal occasions, an alligator Porosus strap in black or brown with a rose gold deployant clasp complements the Oystersteel/Everose two-tone combination. For everyday wear with natural patina development, shell cordovan in cognac or burgundy is the premium artisanal reference. For casual or sporting use, a vulcanised rubber strap in 16mm maintains the waterproofing of the calibre 2236 and lightens the daily wearing experience.

To remove the original Jubilee or Oyster bracelet from the Datejust 31, a dedicated spring bar tool with a 0.9mm tip is required. The spring bars must be compressed laterally inside the lugs to release the strap. Care should be taken not to scratch the case: it is advisable to work on a soft surface and, if in doubt, to entrust the operation to a watchmaker or the Casati Milano atelier.

Yes. Any strap with a 16mm attachment and standard spring bars is compatible with the Datejust 31 278241-0023. Milanostraps.it offers a selection of artisanal straps in 16mm — in alligator, calf leather, shell cordovan and rubber — produced with vegetable tanning and available with various closures, including pin buckle and deployant. Mechanical compatibility is guaranteed by the lug width, regardless of the manufacturer.

The lifespan of a leather strap depends primarily on the material, the tanning process and daily use. A vegetable-tanned calfskin strap lasts on average 2–4 years with regular use; a quality alligator strap, with proper care (nourishing cream every 3–6 months, rotation with other straps), can exceed 5–8 years. Shell cordovan, owing to the density of its fibres, is the most durable of all premium leathers. The Milano Straps guarantee covers manufacturing defects for 18 months.