Strap for Datejust 31 Rolesor Yellow Fluted Diamond / Oyster / Champagne

The Rolex Datejust 31 reference 178313-0017 has a lug width of 16 mm. This measurement is specific to the 31 mm case size. When replacing the strap, it is essential to select one with curved ends to follow the contour of the two-tone Rolesor yellow case lugs correctly.

For the Datejust 31 178313-0017 in yellow Rolesor, the most appropriate choices are polished alligator (for formal occasions), shell cordovan (for those seeking patina and longevity) and vegetable-tanned calf leather (for versatile daily wear). In all cases, the strap must feature curved 16 mm ends compatible with the Rolex lug profile.

Replacing the strap on the Datejust 31 requires a fine-tipped spring bar tool. The Rolesor yellow lugs are crafted from 18-carat gold and stainless steel: proceed with care to avoid scratches. If unfamiliar with the process, it is advisable to consult a watchmaker or a specialist atelier such as Casati Milano.

Yes. The aftermarket offers leather, rubber and fabric straps with a 16 mm attachment compatible with the Datejust 31 178313-0017. The key requirement is that the strap ends are curved to match the radius of the Rolex lugs. Milano Straps offers a handcrafted Italian selection made to this specific profile.

Longevity depends on the type of leather and frequency of use. A quality alligator strap, with daily wear and regular care, typically lasts 2–4 years. Shell cordovan, owing to its dense fibre structure, can exceed 4 years. Vegetable-tanned calf leather averages 18–30 months. Using a deployant clasp reduces mechanical stress on the strap and can significantly extend its service life.