Strap for Datejust 36 Stainless Steel Diamond / Jubilee / Silver

The lug width (strap width) of the Rolex Datejust 36 116244-0058 is precisely 20 millimetres. This measurement refers to the distance between the mounting pins on the case lugs. Measurement is conducted with a digital calliper, measuring the internal distance between the case shoulders where the strap connects. Do not confuse this with the case diameter (36mm): the 20mm lug width is a fixed and invariable proportion for this reference.

The optimal material depends on intended use and aesthetic preference. Alligator leather provides impeccable formal finishing, suitable for institutional contexts. Shell cordovan develops a stratified patina unique over time, synchronising with the ageing of the white gold case. Italian calf offers immediate comfort and bending ease. Vegetable tanning represents the sustainable choice, with natural patination. Each material emphasises different aspects of the case's steel-gold trichromy.

Strap replacement requires two tools: a spring bar extractor (removal tool) and a stable flat work surface. Position the watch with the case facing downward, insert the tool into the small lateral hole of the pin, apply gentle pressure to release the internal spring, and the pin extracts vertically. The used strap disengages from the pin, the new strap positions on the same pin, and the pin reinserts into the opposite lug with a subtle click. The operation demands caution to avoid scratching the white gold case.

Yes, any strap with a 20mm lug width is compatible. The universal pins utilised by Rolex are industry standard. However, aftermarket strap quality is decisive: inferior materials compromise the aesthetic experience of a timepiece at this level. We recommend straps fabricated from alligator, shell cordovan, or full-grain integral leathers, avoiding synthetic and composite materials. Specialised ateliers such as Casati Milano supply straps with warranty, constructed to horological standards.

Lifespan varies according to material and usage patterns. An alligator strap subjected to daily wear lasts between 4-6 years before requiring replacement. Shell cordovan, if properly maintained and not exposed to prolonged humidity, can endure 7-10 years. Italian calf has a lifespan comparable to alligator, 4-6 years. Vegetable-tanned leather, if regularly conditioned with natural creams, can exceed 10 years. Factors such as perspiration, direct sunlight exposure, and humidity accelerate ageing. Casati Milano offers an 18-month warranty on manufacturing defects and provides consultation for maintenance.