Rolex
Datejust 36 116201-0071— lug 20mm

The Rolex Datejust 36, including reference 116201-0071, features a standardised lug width of 20 millimetres. This dimension is determined by the width of the Oyster case lugs and is consistent across all 36mm Datejust models. To verify, measure the distance between the two pin holes with a digital calliper: the measurement must correspond precisely to 20mm. Any compatible strap must respect this tolerance to ensure proper fitment without excessive play or mounting difficulty.

For the bimetallic Datejust 36 (stainless steel and Everose gold), we recommend alligator in cognac or chocolate brown tones, which amplifies the chromatic harmony between the case metals. Vegetable-tanned calfskin represents the most versatile alternative for daily wear, developing a natural patina over time. For formal contexts, dark blue or burgundy shell cordovan creates sophisticated visual tension. Black rubber remains the sporty option, maintaining complete water resistance without compromising elegance. Each material offers distinct tactile and aesthetic properties suited to different wearing scenarios.

Strap replacement on a Datejust 36 requires a spring bar tool (removal device for securing pins). Position the watch on a soft surface, insert the flat end of the tool under the spring bar at one lug, lift gently to release the pin, and slide the old strap away. Repeat at the other lug. The new strap must measure exactly 20mm in width to guarantee precise fitment. To avoid any risk of case damage, we recommend consulting a qualified watchmaker or utilising the bespoke service offered by Casati Milano.

All artisan-crafted straps sized for 20mm lug width are theoretically compatible with the Datejust 36 reference 116201-0071, provided they are manufactured to precise tolerances (maximum variation ±0.2mm). Milano Straps curates a selection of natural leather straps (alligator, calfskin, shell cordovan), vulcanised rubber, and NATO-specification options, all available in the 20mm strap category. Always verify that your chosen strap is certified for 20mm lug compatibility: pin hole diameter must align precisely to prevent mechanical play or stress on the case.

Leather strap longevity depends on material composition, tanning method, and intensity of use. A vegetable-tanned calfskin, subjected to daily wear, maintains structural integrity for 3–5 years before showing signs of fatigue. Alligator, being denser, may persist 5–7 years. Shell cordovan, thanks to its naturally oleaginous composition, can exceed 7 years of service. Accelerating factors include perspiration exposure, humidity, and direct sunlight. Casati Milano guarantees 18 months against manufacturing defects for custom-made straps, though the biological life span of leather remains subject to environmental conditions and regular maintenance.