Strap for Datejust 31 Stainless Steel - Yellow Gold / Diamond/ Olive - Floral / Jubilee

The Rolex Datejust 31 reference 278383RBR-0032 has a lug width of 16mm. This measurement should be taken with a digital calliper between the two lugs of the case, not from the fitted original bracelet. It is the key specification for selecting any compatible aftermarket strap.

For the Datejust 31 in Yellow Rolesor, a vegetable-tanned alligator strap in cognac or bordeaux is the most coherent choice with the watch's elegant register. Shell cordovan is an excellent alternative, offering a dense surface that develops character over time. Smooth calf leather is the most versatile option for daily wear. All straps must feature curved ends to correctly interface with the case lugs.

Replacing the strap on the Datejust 31 requires a spring bar tool to release the 16mm spring bars securing the strap to the lugs. The operation requires care, as the Yellow Rolesor lugs can be scratched by improper tools. We recommend consulting a watchmaker or specialist atelier for the first replacement, or using screw-in spring bars to facilitate subsequent changes.

Yes. Aftermarket straps in 16mm with curved ends are fully compatible with the Datejust 31. It is essential to verify that the manufacturer specifies compatibility with the curved lugs typical of Rolex models and that the included spring bars have the correct diameter (1.5mm) and appropriate length. Milano Straps offers a curated selection of handcrafted 16mm straps tested on this reference.

Longevity depends on the material and usage. A quality alligator strap, kept away from excessive moisture and sweat, and rotated with a second strap, typically lasts 2–4 years before showing structural wear. Shell cordovan, owing to its dense fibre structure, can exceed 4–5 years. Using a deployant clasp reduces bending stress and significantly extends the strap's service life.