Strap for Datejust 36 Stainless Steel / Yellow Gold / Diamond / White / Oyster

The lug width of the Rolex Datejust 36 126283RBR-0006 is 20 millimetres. This measurement is specific to this model and represents the distance between the case lugs (lug to lug). It is essential to verify this dimension before purchasing an aftermarket strap, as 20mm is not interchangeable with other widths without risking visual misalignment or mechanical play. Always measure from the inside of one lug to the inside of the opposite lug.

For this bimetallic yellow gold and steel model, Nile alligator in cognac represents the most refined choice: the natural grain of the reptile skin dialogues elegantly with the warmth of gold, whilst the patina that develops over time enhances the character of the case. Alternatively, shell cordovan in burgundy-brown creates one of the most sophisticated colour combinations in watchmaking, emphasising the timeless elegance of the Datejust 36. For those seeking daily versatility, vegetable-tanned calf in natural leather tone offers breathability and visible ageing throughout time.

Changing the strap requires the use of a spring bar tool or strap remover: position the watch with the case facing downwards, insert the flat blade of the tool under the spring bar lug attachment until the internal hook compresses, then slide the strap upwards to disengage it. Repeat the operation on the opposite lug. To fit the new strap, align the passants with the case lugs, insert the spring bar from one side, pressing gently until it clicks into place. If uncertain, consult a certified watchmaker to avoid damage to the lugs.

All straps with a 20-millimetre lug width are compatible. On milanostraps.it, a dedicated collection of 20mm straps is available, crafted from luxury materials including alligator, cordovan, vegetable-tanned calf and structured rubber. Each strap is checked during production to ensure perfect alignment with the case lugs. Casati Milano also offers a bespoke on-appointment service for personalised strap creation at the Milan atelier, with direct selection of the leather.

The lifespan of a leather strap depends on frequency of wear and environmental conditions. A quality artisanal Nile alligator strap, with water-repellent treatment, typically resists 5-8 years of regular wear; shell cordovan, due to its inherent density, can exceed 10 years. Vegetable-tanned calf is more sensitive to humidity and remains in optimal condition for 4-6 years. All straps crafted by Casati Milano benefit from an 18-month warranty against manufacturing defects; the natural ageing of leather (colouration, micro-creases) is aesthetic evolution and falls outside warranty coverage.