Rolex
Day-Date 36 118235f-0113— lug 20mm

The lug width of the Rolex Day-Date 36 ref. 118235f-0113 is 20mm. This specification is Rolex's proprietary standard for this model and ensures proper alignment between case and strap, both aesthetically and mechanically with respect to the clasp functionality.

Alligator remains the canonical choice for the Day-Date 36 in rose gold: the natural grain texture dialogues perfectly with the smoothness of the precious metal. Shell cordovan represents an excellent alternative for those seeking character and dynamic patina, whilst vegetable-tanned calf offers an ideal option for those preferring initial softness that transforms into personality over time.

Changing the strap requires a specific tool (spring bar tool) to release the suspension pins. Position the tool in the lateral slots of the case, apply gentle pressure to retract the spring, and the strap will detach easily. For installation of the new strap, align the pins into the spaces and ensure the retention spring clicks firmly into place.

Absolutely. Milanostraps artisanal straps at 20mm are fully compatible with the Day-Date 36 ref. 118235f-0113. The standardised lug width permits the use of third-party straps without any aesthetic or functional compromise. You may choose from materials such as alligator, shell cordovan, vegetable-tanned calf and others, according to your preferences.

The lifespan of a leather strap varies depending on material, usage and maintenance. A high-quality artisanal alligator or cordovan strap typically withstands 3-5 years of daily wear before requiring replacement. Vegetable-tanned calf ages more rapidly but develops a unique patina. Regular maintenance—swift drying after moisture contact—significantly extends the usable life.