Strap for Day-Date 36 Yellow Gold Diamonds / President Diamonds / Black Diamond

The Rolex Day-Date 36 reference 118388-0079 features a lug width of 20 mm. This measurement is taken internally between the two lugs on the upper side of the case. It is equally important to account for the lug curvature, as the Day-Date requires curved-end straps to ensure a precise and flush fit.

For a Day-Date 36 in 18-carat yellow gold, a vegetable-tanned alligator strap in tobacco brown or bordeaux is the most aesthetically coherent choice. Shell cordovan develops a distinctive patina over time that complements the jewellery-grade nature of the watch. Black box-calf leather is also a formally impeccable option.

To replace the strap on a Rolex Day-Date 36, a fine-tipped spring bar tool (standard 1.5 mm diameter) is required. Compress the spring bar within the lug, remove the original strap and insert the new one ensuring correct orientation. Work on a soft surface to avoid scratching the gold case. For curved-end straps, it is advisable to consult a watchmaker or the Casati Milano atelier.

Yes. The aftermarket offers 20 mm straps compatible with the Day-Date 36, provided they respect the specific lug curvature of this model. Milanostraps.it stocks a selection of handcrafted leather and rubber straps specifically suited to the 20 mm lug width, produced with carefully selected materials and manual finishing.

The lifespan of a leather strap depends on the material and level of care. A quality vegetable-tanned alligator strap, with daily use and proper maintenance (avoiding prolonged exposure to water and perspiration, rotating between multiple straps), can last between 3 and 5 years while retaining an excellent appearance. Shell cordovan, being denser and more compact, tends to last longer and develops a characteristic patina. Milanostraps offers an 18-month guarantee against manufacturing defects on all straps.