Strap for Datejust 36 Rolesor Yellow Diamond / Jubilee / MOP Roman

The lug width of the Rolex Datejust 36 reference 116243-0017 measures 20 millimetres, calculated between the inner edges of the two lugs on the case. This dimension is standard for modern Datejust 36 models and is compatible with any aftermarket strap designed specifically for 20mm.

Vegetable-tanned alligator is the ideal material for this two-tone model: it offers natural grain texture, develops patina over time, and provides superior durability. Alternatively, Italian vegetable-tanned calf leather ensures softness and formality. For versatility, robust calf with a ribbed finish emphasises the steel-and-gold character of the case.

Strap replacement requires a specialist tool (spring bar tool) to compress the small suspension pins that secure the strap to the lugs. Position the bifurcated end of the tool beneath the spring bar, press towards the centre of the case until the pin compresses, then remove the old strap. Repeat on the opposite lug. Install the new strap by reversing the procedure, ensuring both spring bars click firmly into place.

Yes, provided the strap is designed specifically for 20mm lug width. Lug width is the critical parameter: the strap must have passant bars of correct length to fit the lugs without play. Bespoke manufacturers such as Casati Milano offer custom straps in alligator, calf and other premium materials, guaranteeing aesthetic superiority over mass-produced alternatives.

A high-quality artisanal leather strap—vegetable-tanned alligator or vegetable-tanned calf—typically lasts 3 to 4 years with daily wear, assuming proper maintenance. Leather is vulnerable to excessive heat, prolonged moisture and direct UV exposure. Rotating multiple straps extends the life of each, allowing leather to dry thoroughly between uses. Casati Milano's 18-month warranty covers manufacturing defects, not natural wear.