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

The lug width of the Rolex Day-Date 36 128349RBR-0013 is 20 millimetres. This measurement represents the distance between the two lateral lugs onto which the strap is fitted. It is essential to verify this specification before purchasing an aftermarket strap to ensure complete compatibility with the case.

For the white gold Day-Date 36, alligator remains the classic aesthetic choice, with natural texture that dialogues perfectly with the case geometry. However, vegetable-tanned calf offers softness and evolving patina over time, whilst Shell Cordovan represents the connoisseur's choice for its unique elasticity and natural lustre. The choice depends on intended usage and personal preference regarding colour development.

Changing the strap requires a dedicated tool (spring bar tool) to remove the lugs from the case. Position the watch face-down, insert the flat screwdriver of the spring bar tool into the groove on the case, gently lift the lug until it disengages, then withdraw the old strap. The reverse procedure allows installation of the new strap. If you lack the tool or experience, entrust the operation to a professional watchmaker.

Yes, any strap with a 20mm lug width is completely compatible with the Day-Date 36 128349RBR-0013. Lug width is the only critical parameter. Milanostraps.it stocks 20mm straps in alligator, calf, Shell Cordovan and rubber, all handcrafted and compatible with this specific reference.

The lifespan of a leather strap depends on material, usage and care. Alligator achieves 5-7 years with daily wear. Vegetable-tanned calf lasts 3-5 years before replacement becomes necessary. Shell Cordovan, owing to its elasticity, easily exceeds 7 years. All straps made by Casati Milano carry an 18-month warranty against manufacturing defects. Regular maintenance (hydration with specific creams, swift drying after moisture exposure) significantly extends lifespan.