Rolex
Datejust 36 126234-0021— lug 20mm

The lug width is 20mm. This measurement represents the width of the strap from the attachment point at the case lug to the opposite side. It is essential to verify this measurement before purchasing an aftermarket strap, as an incorrect width would result in lateral play or mounting difficulties. To measure accurately, position a calliper at the lug shoulder and extend to the opposite lug.

For the Datejust 36 in white gold and stainless steel, alligator leather represents the most refined choice. We recommend medium grain texture in dark brown or black, which enhances the case without visual competition. Alternatively, superior-quality calf leather worked with vegetable tanning offers a patina that evolves over time. For a sportier interpretation, dark tannin calf with white stitching balances the case's visual depth.

The procedure requires a specific tool: a spring bar removal tool with dual ends. Carefully remove the original strap by extracting the spring bars from the case lugs. Insert the new strap by aligning the spring bars with the corresponding seats and press until you hear a click. We recommend performing this operation on a soft surface (cloth) to prevent scratches. If you lack experience, entrust the task to a professional watchmaker.

Yes, provided the strap is certified for 20mm lug width. Artisanal straps produced by Casati Milano and distributed by milanostraps.it are fully compatible. Verify that the strap's lugs are of identical width (20mm) and that the attachment spring bars are Rolex-standard. A high-quality artisanal strap significantly elevates the overall aesthetic of the watch compared to mass-produced alternatives.

A high-quality natural leather strap (alligator, tannin calf, shell cordovan) typically lasts 3–5 years with moderate daily wear, extending to 7–10 years with occasional use and proper maintenance. Longevity depends on sun exposure, perspiration, humidity, and frequency of wear. Regular maintenance (cleaning and conditioning with specialist products) significantly extends useful life. Casati Milano straps, crafted with premium leather and artisanal construction, offer superior durability compared to industrially-produced alternatives.