Rolex
Datejust 31 178383-0010— lug 16mm

The Rolex Datejust 31 178383-0010 features a lug width of 16mm. This measurement is specific to the 31mm case diameter and requires curved end straps at 16mm to correctly follow the internal curvature of the lugs.

For the Datejust 31 178383-0010 in yellow Rolesor, a vegetable-tanned alligator strap in cognac or black offers the finest formal pairing. Barenia-grain calf leather suits everyday wear. For sporting contexts, vulcanised rubber provides genuine water resistance without compromising the overall aesthetic.

To replace the strap on the Datejust 31, the 16mm spring bars securing the strap to the case lugs must be removed using a fine-tipped spring bar tool or a thin-bladed screwdriver. Care must be taken to avoid scratching the yellow gold lugs; it is advisable to protect the case with PTFE tape during the operation.

Yes. Milanostraps.it offers a curated selection of 16mm aftermarket straps compatible with the Rolex Datejust 31, including alligator, calf leather, and rubber options with curved ends designed to seat flush against the case. Casati Milano also crafts fully bespoke straps with leather selected in person at the Milan atelier.

The lifespan of a leather strap depends on the material and usage habits. A quality vegetable-tanned alligator strap, properly maintained with leather conditioner, rotated with other straps, and kept away from water, will typically last between three and five years with daily wear. Calf leather tends to have a shorter lifespan but breaks in more quickly.