Strap for Rolex Day-Date 36 128349RBR

The lug width of the Day-Date 36 128349RBR is 20mm. This width is standard for all modern Day-Date 36 models and represents the distance between the metal lugs that attach the strap to the lugs of the watch case. Always verify this measurement before ordering an aftermarket strap to ensure a perfect fit without movement or stress on the lugs.

For the 128349RBR with white gold and baguette diamonds, alligator leather is the natural choice. The regular texture of fine grain creates an elegant dialogue with the gold, whilst a black or dark brown colour enhances the luminosity of the bezel. Alligator offers the perfect balance between luxury, comfort and durability, with a natural patina that develops over time.

Changing the strap requires the use of a dedicated spring bar tool. With the watch secured, insert the tool into the slot of the lug to compress the internal spring of the bar, then extract the old strap. Repeat at the opposite lug. Finally, align the lugs of the new strap with the watch case pins and release the tool so the spring repositions itself. If unsure, consult a professional watchmaker.

Yes, an artisanal strap with 20mm lug width is perfectly compatible with the 128349RBR. High-quality aftermarket straps allow you to personalise the watch whilst maintaining the integrity of the Rolex case. We recommend noble leathers such as alligator, shell cordovan or vegetable-tanned calf to ensure durability and a patina that improves over time.

The lifespan of a leather strap depends on the quality of the material and daily use. A well-maintained artisanal alligator strap typically lasts 5–7 years with moderate wear. Shell cordovan can last even longer thanks to its dense fibrous structure. Vegetable-tanned leather ages naturally, developing an increasingly beautiful patina. Factors such as sun exposure, humidity and frequency of use influence the final longevity.