Strap for Datejust 31 White Gold / Diamond / Butterfly / President

The Rolex Datejust 31 ref. 278289RBR-0008 features a lug width of 16mm. This measurement is specific to the 31mm Datejust format and requires straps with curved ends to correctly follow the profile of the white gold case.

For an 18-carat white gold case with a diamond-set bezel, a vegetable-tanned Mississippi alligator strap is the most coherent choice: the square grain complements the dial's refinement without competing with it. Alternatively, polished box-calf leather or shell cordovan offer formal profiles with a slim cross-section, well-suited to slender wrists.

Strap replacement on the Datejust 31 requires a fine-tipped springbar tool with a 1.5mm pin. The white gold lugs are delicate: protect the case with non-residue tape before operating. If in doubt, entrust the operation to a professional watchmaker or visit the Casati Milano atelier.

Yes. Compatible aftermarket straps must have a 16mm lug width and, ideally, curved ends to match the case profile. Milano Straps offers a dedicated selection of handcrafted 16mm straps, made from selected leathers and fitted with bespoke buckles or deployant clasps designed specifically for this Rolex format.

Longevity depends on the leather and daily use. A vegetable-tanned alligator strap, properly maintained and rotated with a second strap, can last between 3 and 6 years while retaining structural integrity and patina. Shell cordovan offers superior resistance to repeated flexion. Prolonged exposure to water, perspiration and perfume accelerates deterioration: for a Datejust 31 in daily use, a rotation of at least two straps is strongly recommended.