Strap for Day-Date 36 White Gold / Diamond / MOP-Diamond / President

The lug width of the Rolex Day-Date 36 128349RBR-0004 is 20 millimetres. This measurement is specific to the Day-Date 36 and is compatible exclusively with certified 20mm straps. To verify compatibility, measure the internal distance between the two lugs on the case: it must correspond exactly to 20mm without variations.

For the Day-Date 36 128349RBR-0004 in white gold, the ideal strap is Niloticus alligator with tight grain and dark patina (brown or black). This choice maintains aesthetic coherence with white gold and develops a natural patina over time that amplifies visual complexity. Excellent alternatives are vegetable-tanned calf leather in burgundy tones or the rare shell cordovan, which creates a luminosity parallel to gold.

The Day-Date 36 strap is changed using a spring bar removal tool available from specialist watch retailers. Position the tool on the bar until the internal spring is released, then extract the strap from the lugs. Insert the new strap by aligning the holes with the bars and snap the springs laterally until fully locked. If unsure of the procedure, consult a qualified watchmaker.

Yes, any strap with a certified 20mm lug width is compatible with the Day-Date 36 128349RBR-0004, regardless of manufacturer. Choose an artisanal strap of superior quality such as those crafted by Casati Milano: the excellence in workmanship and material selection ensure durability and aesthetics proportionate to the refinement of your Rolex.

The lifespan of a leather strap for the Day-Date 36 depends on the material and usage. Quality artisanal Niloticus alligator typically lasts 3-5 years with daily wear, thanks to the resistant fibre structure of the skin. Vegetable-tanned calf leather has a slightly shorter lifespan (2-4 years). Shell cordovan, due to its density, can exceed 5-7 years. Casati Milano guarantees 18 months against manufacturing defects, but with proper maintenance the strap maintains functionality and aesthetics well beyond this period.