Rolex
Datejust 36 116234-0158— lug 20mm

The lug width of the Rolex Datejust 36 reference 116234-0158 is 20 millimetres. This specification remains constant across the entire production history of this two-tone model. Lug width is measured by positioning a digital calliper on the inner surfaces of the spring bar pins, not on the watch case itself. Precise measurement is essential before ordering a compatible third-party strap.

For the Datejust 36 two-tone white gold and steel, we recommend straps in dark brown alligator, vegetable-tanned calf leather, or shell cordovan for those seeking noble leathers with patina development. Alligator maintains classical elegance, calf leather offers aesthetic versatility over time, whilst shell cordovan represents the choice for those pursuing maximum material refinement. Selection depends on daily usage and personal style preference.

Strap replacement requires a specialised tool known as a spring bar tool to remove the spring-loaded pins that secure the strap to the case lugs. Position the tool in the small slot of the pin, apply gentle pressure to extract the pin, remove the old strap, then re-insert the pin into the new strap, ensuring perfect alignment with the case lugs. For risk-free procedure, Casati Milano offers strap change service by appointment at the Milan atelier.

Yes, any strap specified with 20mm lug width is compatible with the Rolex Datejust 36 116234-0158. However, aesthetic quality and durability vary significantly among suppliers. Milanostraps offers a dedicated collection of 20mm straps handcrafted by Casati Milano, guaranteed for 18 months and selectable directly online. We recommend prioritising natural leathers and premium finishing for a result worthy of your Rolex case.

The lifespan of a natural leather strap depends on usage, climate, and tanning method. A quality alligator strap, worn daily in temperate climate, resists 3-5 years before visible wear appears. Vegetable-tanned calf leather offers similar durability, 3-4 years, with the advantage of aesthetic patina development. Shell cordovan requires greater maintenance but can last 5-7 years if regularly cared for. Casati Milano's 18-month warranty covers manufacturing defects, not wear resulting from normal use.