Strap for Datejust 31 Stainless Steel Fluted / Oyster / Blue - Roman

The Rolex Datejust 31 ref. 178274-0080 has a lug width of 16mm. This measurement is dictated by the 31mm case diameter and is specific to this variant: it is not compatible with the 20mm straps used on the Datejust 36 or 41. We recommend verifying the lug width with a digital calliper before purchasing any aftermarket strap.

For the Datejust 31 178274-0080 with its white gold bezel, an alligator strap with belly grain in vegetable-tanned leather is the most coherent choice for the watch's formal register. Box-calf leather is the ideal alternative for everyday urban wear. For sport or humid environments, vulcanised rubber ensures durability and protects the lugs. All straps must have a 16mm attachment.

To replace the strap on the Datejust 31, use a spring bar tool to remove the spring bars connecting the strap to the case lugs. Care must be taken to avoid scratching the Oystersteel case or the white gold bezel. Alternatively, the operation can be performed by a watchmaker or at the Casati Milano atelier by appointment.

Yes, high-quality aftermarket straps compatible with the Datejust 31 ref. 178274-0080 are available. The key requirement is a 16mm lug width. Milano Straps offers a curated selection of handcrafted leather, rubber, and textile straps made specifically for this size, with bespoke customisation options through the Casati Milano atelier.

The lifespan of a leather strap depends on the tanning quality, the type of leather, and daily care. A high-quality vegetable-tanned alligator strap, kept away from excessive water and perspiration and periodically treated with neutral conditioner, can last between 3 and 5 years while retaining its original structure. Calf leather typically lasts between 1 and 3 years. Shell cordovan, thanks to its dense fibre structure, is among the most long-lasting leather options available.