Rolex
Datejust 36 116233-0179— lug 20mm

The lug width is 20mm. This measurement is critical for strap selection: it measures the distance between the inner spring bar holes on the case. Any compatible strap must have a 20mm lug width to fit without modification or force.

The Datejust 36 pairs perfectly with vegetable-tanned alligator (dark brown, cognac, or burgundy tones), full-grain calf with aged patina, or a classic canvas NATO with metal buckle. Choice depends on usage: formal, daily wear, or sporty. We recommend visiting the Casati Milano atelier to try different textures and grains on your wrist.

The process is straightforward: use a dedicated spring bar tool to gently press the spring bar from the opposite side until it releases from the case lug. Lift the old strap, align the new strap's holes with the spring bars, and press until the bars sit flush in the lugs. If unfamiliar, Casati Milano offers professional installation by appointment in Milan.

Yes. Any strap with 20mm lug width is compatible: the Rolex Datejust 36 uses no proprietary connectors. Artisanal leather straps in premium materials—alligator, shell cordovan, aged calf—often deliver superior aesthetics and comfort whilst respecting the case proportions.

Lifespan depends on tanning method and wear frequency. A vegetable-tanned alligator or full-grain calf strap lasts 3–5 years with daily wear; longer if rotated with other straps. Patina—the natural oxidation of leather—signals longevity and beauty. Casati Milano guarantees 18 months against manufacturing defects and offers specialist repairs.