Rolex
Datejust 36 116234-0113— lug 20mm

The lug width (spring bar distance) of the Rolex Datejust 36 116234-0113 is 20 mm. This measurement is taken from the lower to the upper anchoring point of the case lugs. It is essential to verify that the strap is specifically designed for 20 mm, as historical Datejust variants may feature 19 mm or 21 mm lugs. An incompatible strap will immediately prove problematic during spring bar insertion.

For the Datejust 36 116234-0113, an alligator strap with vegetable tanning is the most cohesive choice. Alligator offers regular grain and structural lightness, amplifying the classic-sport character of the model. Colours such as cognac, tea brown, or pure black dialogue perfectly with the bicolour white gold and steel case. For daily versatility, vegetable-tanned calf leather with a steel deployante buckle ensures comfort and practicality without formal compromise.

To change the strap on the Datejust 36 116234-0113, carefully remove the current strap by extracting the spring bars that connect the case to the lugs. Use a spring bar tool—a small steel implement with a pointed spatula—to compress the bar whilst extracting the lug. The new 20 mm lug width strap is inserted by positioning the spring bars into their housings and verifying the locking click. If inexperienced, it is advisable to consult a specialist watchmaker or the Casati Milano bespoke service.

Yes, absolutely. A 20 mm aftermarket strap crafted in premium leather—alligator, shell cordovan, or vegetable-tanned calf—is entirely compatible and indeed the recommended option for those seeking aesthetic personalisation. Casati Milano straps, constructed artisanally with specifications identical to the original Rolex, offer superior construction quality and contemporary aesthetics. Aftermarket use does not void Rolex warranty provided the installation does not alter the case.

A quality leather strap, subjected to moderate daily wear, typically lasts 3-5 years before visible wear appears (patina crazing, stitch fatigue). Longevity depends on: frequency of use, solar exposure, environmental humidity, and strap maintenance. An alligator with vegetable tanning develops a noble patina over time and may last beyond 5 years. Casati Milano straps include an 18-month warranty on manufacturing defects, guaranteeing structural longevity.