Strap for Datejust 31 Stainless Steel/ Rose Gold / Fluted / Chocolate - Diamond / Oyster

The <a href="/pages/termine-glossario/misura-ansa">lug width</a> of the Datejust 31 278271-0027 is 16.00 millimetres. This dimension, measured between the case lugs, is an ISO standard and ensures compatibility with all straps designed for this specification. Always verify measurement with a calliper before ordering.

For this two-tone rose gold and stainless steel model, we recommend straps in dark <a href="/pages/termine-glossario/alligatore">alligator</a> leather or vintage calfskin with integrated <a href="/pages/termine-glossario/deployante">deployante</a> buckle. Alligator offers formal elegance and distinctive grain, whilst vegetable-tanned calfskin develops natural patina over time. Avoid rigid straps: the Datejust 31 requires suppleness for comfortable wear on the female wrist.

The case lugs are fitted with removable spring bars. Support the watch on a soft pad, locate the small metal pin passing through each lug, gently push it outward with a spring bar tool, remove the pin and slide off the old strap. Insert the new strap, align it with the lug seats, slide the pin through and verify secure engagement. If uncertain, consult a certified watchmaker.

Yes, any strap with a standard 16mm lug width is compatible. Bespoke artisanal straps, such as those crafted by Casati Milano, offer superior quality compared to serial Rolex straps, with personalised leather selection, hand-stitching and bespoke finishing. Compatibility is ensured by ISO standardisation of lug width dimensions.

A quality leather strap (alligator, vegetable-tanned calfskin) lasts 3–5 years with regular maintenance. Longevity depends on daily wear, humidity exposure and care routine. Premium leathers such as alligator develop a desirable patina, whilst vegetable-tanned calfskin creates irregular texture patterns prized by collectors. Rubber or fabric straps offer greater resistance in aquatic environments.