Rolex
Datejust 36 116233-0171— lug 20mm

The lug width (misura ansa) of the Rolex Datejust 36 116233-0171 is precisely 20 mm. This measurement represents the distance between the two spring bars that connect the strap to the case. To verify it accurately, use a digital calliper positioned perpendicularly to the case, measuring the internal distance between the upper or lower lugs. Any measurement error will result in purchasing incompatible straps.

For a two-tone Rolex Datejust 36, alligator leather remains the classical choice due to its fine, regular grain that enhances the case's inherent elegance. However, vegetable-tanned calf leather represents a sophisticated alternative, developing natural patina over time. For those seeking exceptional construction quality, shell cordovan offers superior durability and unique ageing characteristics. A sports-oriented nato fabric or natural rubber strap provides daily versatility whilst maintaining aesthetic balance with the two-tone material.

Changing the Datejust 36 strap requires a spring bar tool or a thin screwdriver. Position the watch on a stable surface, protect the case with a soft cloth, then insert the tool into the small hole beneath the spring bar from the inside of the case. Apply gentle pressure until the spring releases, then extract the pin. Repeat the procedure on the other side. Reverse the process to install the new strap. If uncertain, entrust the procedure to an authorised Rolex service centre.

Yes, provided the strap features a certified 20 mm lug width. Aftermarket straps of artisanal quality—such as those produced by specialised workshops—guarantee superior mechanical and constructive compatibility over generic products. It is essential to verify that the finishes (closure type, thickness) harmonise with the watch's proportions and style. A strap in alligator, calf or cordovan leather from a certified atelier represents a tangible constructive upgrade over original Rolex straps.

The lifespan of a leather strap depends on the quality of the tanning, the material, and use conditions. A high-quality artisanal alligator or vegetable-tanned calf resists approximately 5–7 years with daily use and ordinary maintenance (avoiding prolonged moisture, protecting from direct sunlight). Shell cordovan, thanks to its superior density, can exceed 10 years. The patina that develops constitutes an integral part of its charm, not a defect. It is advisable to rotate between multiple straps to extend their lifespan and permit proper drying between uses.