Strap for Day-Date 36 Everose Gold / Diamond / White - Roman / President - Diamond

The lug width (or ansa width) of the Day-Date 36 reference 128345RBR-0071 is 20mm. This dimension is determined by the geometry of the rose gold case and the position of the lugs on the caseback. To measure the lug width correctly, position a calliper gauge between the two internal points where the strap anchors to the case. The construction tolerance must be less than 0.5mm to ensure stable attachment without lateral play.

Alligator leather from certified tanneries represents the most elegant solution for the 128345RBR-0071. The microscopic and regular grain of the skin creates a refined contrast with the satinised finish of the rose gold. It develops a natural caramel-golden patina over months of wear, harmonising the strap with the case. Vegetable-tanned calf leather also offers pronounced texture and extraordinary ageing capacity, while shell cordovan guarantees extreme density and an almost marble-like patina over time.

Strap replacement requires a very thin, flat-bladed lever tool (spring bar tool) and gentle movements. Position the watch on a soft surface, identify the spring bar push pin on one side of the lug, insert the lever into the small gap between lug and strap to compress the internal spring and extract it. Repeat on the other side. Insert the new strap by aligning the holes with the lugs, then re-insert the spring bar, ensuring it clicks into position on both sides. Verify there is no lateral play.

Yes, artisanal quality straps constructed to rigorous watch industry standards are fully compatible with the Day-Date 36 128345RBR-0071, provided they respect the 20mm lug width. Custom leather straps (alligator, calf, shell cordovan) offer functional and aesthetic alternatives to original Rolex straps, maintaining identical standards of retention and anchoring. Construction tolerance must remain within hundredths of a millimetre to ensure the absence of lateral movement.

The lifespan of a leather strap depends on the material, intensity of use and climatic conditions. A certified quality alligator strap maintains aesthetic and structural integrity for 5-7 years of daily wear. Shell cordovan, thanks to extreme density, can exceed 10 years. Vegetable-tanned calf typically lasts 4-6 years before requiring replacement. Exposure to excessive moisture, direct sunlight and extreme temperatures reduces longevity. Occasional oiling (every 18-24 months) with products specifically formulated for watch leather extends strap life significantly.