Strap for Datejust 31 Stainless Steel/ Rose Gold / Fluted / Aubergine - Roman / Jubilee

The Rolex Datejust 31 278271-0020 has a lug width of 16mm. This is a specific measurement for this family, distinct from the 20mm of the Datejust 36 and the 13mm of the Lady-Datejust. The measurement should be taken between the inner horns at the strap attachment point.

For the Datejust 31 278271-0020 in Rolesor Everose, a flat-scaled alligator strap in vegetable-tanned leather is the most coherent choice given the calibre of the watch. Shell cordovan develops a distinctive patina over time, whilst box-calf leather is well suited for more restrained daily wear.

Strap replacement on the Datejust 31 requires a spring bar tool to remove the 1.5mm spring bars housed in the 16mm lugs. It is advisable to work on a soft surface to protect the Rolesor Everose case. If in doubt, consult a watchmaker or the Casati Milano atelier.

Yes, aftermarket straps compatible with the 16mm lug width of the Datejust 31 278271-0020 do exist. Precision cutting to 0.1mm is essential to ensure a firm fit without play in the lugs. Milano Straps offers a curated selection of handcrafted 16mm straps, available bespoke or ready to ship, fully compatible with this reference.

The lifespan of a leather strap depends on the material and frequency of wear. A quality vegetable-tanned alligator strap, properly maintained and rotated with other straps, typically lasts 3 to 5 years. Shell cordovan, owing to its dense fibrous structure, tends to last longer while developing a distinguished patina. The Casati Milano guarantee covers manufacturing defects for 18 months.