Strap for Day-Date 36 Yellow Gold / Strap / White

The lug width of the Rolex Day-Date 36 118138-0123 is 20 mm. This is the precise distance between the two lugs where the strap connects. It is essential to verify this measurement with a digital calliper before purchasing an aftermarket strap to ensure perfect fitment without lateral play.

Alligator remains the most coherent choice for the formal DNA of the Day-Date 36. Vegetable-tanned alligator develops natural patina over time, and the geometric structure of the scutes aligns visually with the proportions of the case. Quality calf leather and shell cordovan are valid alternatives for those preferring finer textures or polished finishes.

Strap replacement requires minimal tools: a spring bar removal tool and a stable work surface. Position the watch case-down, insert the tool into the lateral gaps of the spring, compress to release the lug from the attachment hole. Repeat on the other side. The operation is delicate: avoid excessive force to prevent scratching the lugs. Those inexperienced can rely on Casati Milano by appointment.

Yes, provided it is dimensioned to 20 mm lug width. The Rolex lugs on the Day-Date 36 are standard; any quality-built strap for this measurement will attach correctly. We recommend verifying thickness and rigidity: overly thick straps may create fitment difficulty; those too thin risk lateral flexing.

Lifespan depends on leather quality and climate of use. Vegetable-tanned alligator, under moderate wear (4-5 days per week), resists 8-12 years before replacement. Shell cordovan lasts longer (10-15 years) if protected from excessive moisture. Calf tends to wear faster (5-8 years). A rubber strap maintains structural integrity for 10-15 years without significant degradation.