Rolex
Day-Date 36 118388-0135— lug 20mm

The Rolex Day-Date 36 reference 118388-0135 features a 20-millimetre lug width. This measurement, taken between the internal pins, is specific to this model and is essential for ensuring harmonious proportions between the 36mm case and the wrist. Any aftermarket strap must strictly comply with this width to avoid compatibility issues and aesthetic compromises.

For the Day-Date 36 in yellow gold 118388-0135, alligator represents the conservative and formal choice, ideal for business contexts. Vegetable-tanned calf offers an elegant alternative that develops unique patina over time. Natural rubber or Cordura are contemporary choices that add versatility. The decision depends on usage context: formal occasions suggest alligator, everyday wear suggests aged calf leather or rubber.

Strap replacement requires a specialised spring bar tool to extract the attachment pins. Position the watch on a soft cushion, locate the pins at the ends of the lugs, use the spring bar tool to compress the internal spring and extract the pin. Insert the new strap by aligning the pins to the holders and release the tool. It is advisable to consult a professional to avoid damage to the case or crown.

Yes, an artisanal high-quality strap can replace the President bracelet without aesthetic compromise. The Day-Date 36 in yellow gold, thanks to its classic proportions, adapts excellently to custom straps in alligator, calf leather, shell cordovan or rubber. Compatibility is guaranteed by the 20mm lug width. Casati Milano straps offer quality comparable to the Rolex bracelet with possibilities for chromatic and tactile personalisation.

A high-quality artisanal leather strap lasts an average of 3-5 years with regular daily use, considering exposure to water, perspiration and UV rays. Vegetable-tanned leather ages better, developing character and patina, but remains subject to physiological wear. Replacement depends on usage intensity: formal straps last longer than sports straps. Casati Milano offers an 18-month warranty on manufacturing defects and consultation on maintenance and reconditioning.