Strap for Datejust 31 Stainless Steel Domed Diamond / Jubilee / Grey - Roman

The lug width of the Rolex Datejust 31 278344rbr-0024 is 16 millimetres. This measurement represents the distance between the two springbars that secure the strap to the case lugs. It is essential to verify this dimension before purchasing any aftermarket strap to ensure perfect mechanical compatibility.

The optimal strap depends on intended use and personal aesthetic preferences. For formal settings, alligator in black or cognac offers pure elegance and longevity. For versatile daily wear, vegetable-tanned calf leather with natural patina development creates sophistication and character. Rubber and NATO fabrics are ideal for those seeking practicality without stylistic compromise. We recommend a personalised consultation at Casati Milano to make an informed selection.

Changing the strap requires a spring bar tool designed for this purpose. Position the watch on a stable surface, carefully insert the tool beneath the springbar, lift gently until the bar retracts, then extract it. Repeat on the opposite side. To install a new strap, align the strap ends with the case lugs and press the springbar into place until it clicks securely. We recommend professional assistance from an authorised dealer or our atelier to prevent case scratching.

Yes, any strap with a 16-millimetre lug width is mechanically compatible. However, we strongly recommend selecting premium materials—alligator, vegetable-tanned calf, vulcanised rubber, or NATO fabric—to respect the watch's value and aesthetics. An inferior strap will undermine the overall perception of the timepiece. Milano Straps curates a selection of handcrafted 16mm straps with finishes befitting the Rolex's prestige.

Leather strap longevity depends on material quality and usage patterns. Premium alligator, worn daily, typically lasts 3–5 years before visible wear emerges. Vegetable-tanned calf, owing to its robustness and evolving patina, can endure 4–7 years. Exposure to perspiration, moisture, and sunlight accelerates degradation. Rubber and NATO straps, more resistant to environmental stress, last 5–8 years. Milano Straps provides an 18-month warranty against manufacturing defects and offers repair and restoration services for worn straps.