Strap for Day-Date 36 Yellow Gold Diamonds / President Diamonds / MOP

The lug width of the Day-Date 36 118348-0061 is 20 millimetres. This measurement is critical when selecting an aftermarket strap: it must be measured perpendicularly between the internal points of both lugs, and the strap must not exceed this width to ensure proper fit and secure attachment.

Alligator leather of premium grade remains the most coherent choice with the presidential heritage of the Day-Date 36 in yellow gold. Burgundy shell cordovan is a distinguished alternative for formal occasions, whilst vegetable-tanned calf offers greater daily versatility. Rubber straps are ideal for tropical or sporty environments, though they alter the formal aesthetic of the timepiece.

Strap replacement requires a spring bar tool — a specialised implement used to release the terminals. Position the tool beneath the horizontal pin connecting the strap to the case, apply gentle, even pressure to compress the internal spring, then slide the strap outward. The operation is reversible and requires no technical intervention: it is advisable to consult an authorised Rolex centre or qualified watchmaker if you lack the appropriate tool.

Yes, aftermarket straps are compatible provided they strictly respect the 20mm lug width specification. High-quality artisanal straps — crafted from alligator, shell cordovan, or vegetable-tanned calf leather — are fully compatible with the 118348-0061. It is essential to verify that the strap has been manufactured specifically for this lug width, not for other watches.

Durability depends on material selection, frequency of wear, and environmental conditions. Premium alligator typically lasts 5–8 years with daily use, developing a fascinating patina over time. Shell cordovan is even more resilient, potentially exceeding 10 years, whilst vegetable-tanned calf has intermediate longevity of 4–6 years. Exposure to moisture, perspiration, and UV radiation accelerates wear. Proper maintenance—avoiding prolonged immersion and drying the strap after use—significantly extends service life.