Strap for Datejust 31 Yellow Gold / Diamond / MOP / Oyster

The Rolex Datejust 31 ref. 278288rbr-0013 has a lug width of 16mm. This measurement is taken with a digital calliper across the internal gap between the two horizontal lugs of the case, in direct contact with the case body. It is essential to use straps with a precisely 16mm attachment to ensure correct fitment without lateral play.

For the yellow gold Datejust 31, a vegetable-tanned alligator strap is the most coherent choice with the watch's level: the exotic grain complements the pavé bezel without overwhelming it. Alternatively, polished box-calf leather offers a compact, formal surface, while shell cordovan develops a rich organic patina over time. For sporting contexts, a vulcanised rubber strap with a yellow gold deployant clasp maintains metallic consistency with the case.

Replacing the strap on a Rolex Datejust 31 requires a spring bar tool or a fine flat-head screwdriver to release the spring bars housed within the case lugs. It is advisable to work on a soft surface to avoid scratching the case or crystal. If you are not familiar with the procedure, it is preferable to rely on a watchmaker or the Casati Milano atelier, which offers a fitting service alongside strap delivery.

Yes, there are numerous aftermarket straps compatible with the Rolex Datejust 31, provided they feature a 16mm attachment. Milano Straps offers a selection of artisanal straps in various leathers and materials, made to order or available online, specifically calibrated for the 16mm lug width of the Datejust 31. It is important to ensure the spring bar is included or compatible with the model.

The lifespan of a leather strap depends on the quality of the tanning, the type of leather and conditions of use. An artisanal alligator or calf leather strap with vegetable tanning, properly maintained and stored when not worn, can last between 3 and 7 years whilst retaining structural integrity and aesthetic appeal. Shell cordovan, owing to its dense fibrous structure, tends to have the greatest longevity among smooth leathers. Prolonged exposure to perspiration, water and UV rays accelerates deterioration: rotating between multiple straps is recommended.