Strap for Datejust 31 Rolesor Yellow Diamond / Oyster / Champagne

The Rolex Datejust 31 ref. 178383-0048 has a lug width of 16mm. This measurement should be taken internally between the case lugs using a millimetre calliper to ensure accurate compatibility with any aftermarket strap.

For the yellow Rolesor configuration of the Datejust 31, the most suitable materials are alligator in warm tones (cognac, tobacco, bordeaux), vegetable-tanned calf leather with a natural patina, and shell cordovan for a refined, classic look. A deployant clasp in steel or yellow gold completes the pairing with consistent metal matching.

To replace the strap on the Datejust 31, use a double-ended springbar tool to remove the springbars from the 16mm lugs. Always work on a soft surface to avoid scratching the Rolesor case. If in doubt, entrust the operation to a watchmaker or the Casati Milano atelier.

Yes, the aftermarket offers a wide selection of 16mm straps compatible with the Datejust 31. Milano Straps carries models in alligator, calf leather, shell cordovan and rubber, all fitted with standard Rolex 1.8mm springbars, ensuring precise installation without any case modification.

Longevity depends on material and usage: a quality alligator strap, properly conditioned and rotated regularly, maintains structural integrity for 3–5 years. Vegetable-tanned calf leather develops a patina over time but is more susceptible to moisture. Milano Straps provides an 18-month warranty against manufacturing defects on all handcrafted straps.