Rolex
Datejust 36 116243-0002— lug 20mm

The lug width of the Rolex Datejust 36 116243-0002 is precisely 20 millimetres. This measurement refers to the distance between the lateral pins (spring bars) that hold the strap. To verify it accurately, position a ruler between the two pins parallel to the dial. A compatible strap must have a 20mm lug width to ensure perfect fit and mechanical functionality.

For the two-tone yellow gold and stainless steel Datejust 36, we recommend Niloticus alligator with vegetable tanning in dark brown or Italian calf leather in solid black. Alligator mirrors the clean linearity of the case and develops a natural patina; vegetable-tanned calf guarantees structural integrity beyond 4-5 years of daily wear. Choice depends on occasion: alligator for daytime and formal contexts, calf for nocturnal elegance. Both accept gold or steel deployante clasps for two-tone coherence.

Strap replacement requires a dedicated spring bar tool inserted into the hole beneath the lug. With gentle downward pressure, compress the elastic pin and extract it from the case lug. Once the old strap is freed, position the new one by aligning the holes and push the pin until it clicks definitively into place. This procedure must be performed on a soft surface (carpet) to avoid case scratches and with utmost caution to prevent forcing screws. If uncertain, entrust the task to an authorised Rolex centre or a specialist master watchmaker.

Yes, any aftermarket strap with a 20mm lug width is mechanically compatible with the Datejust 36 116243-0002. Compatibility depends on correct lug width measurement and absence of construction defects (deformed pins, off-centre holes). We recommend selecting specialised leather goods manufacturers that guarantee precise tolerances and noble materials (alligator, vegetable-tanned calf, shell cordovan). A certified artisanal strap additionally guarantees structural durability and future repair possibilities.

Durability depends on frequency of use, leather quality and environmental conditions. Excellent-quality alligator or vegetable-tanned calf resists 4-6 years with daily wear; with occasional use (worn 2-3 days weekly), lifespan can extend to 8-10 years. Exposure to direct heat, constant humidity and sea salt accelerates fibre ageing. Periodic cleaning with a damp cloth and protective storage in a cotton case significantly prolong strap life. Many Rolex Datejust 36 owners change the strap every 5-7 years, opting for a new one as a natural maintenance cycle.