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

The lug width is 20 millimetres. This dimension is standard for the Day-Date 36 and engineered to maintain optical balance on a 36-millimetre case diameter. When sourcing a compatible strap, ensure the external width is precisely 20mm and that the attachment depth aligns with your case's lug slots.

There is no absolute "best," but rather contextual choices. Alligator is the historically formal option, offering sartorial elegance and natural patina development. Shell cordovan provides structural density and enduring granular texture. Italian vegetable-tanned leather combines aesthetics with sustainability, developing visible patina. A black Rolex rubber strap remains the universal solution. Your choice depends on how you intend to wear the watch daily.

The procedure requires specific tools: a spring bar removal tool and a stable work surface. Position the watch with the case facing downward, locate the invisible attachment pins beneath the lugs, and gently push the tool to extract the old strap. Insert the new strap by aligning its pins with the case slots, and press until you hear a decisive click. If inexperienced, entrust the work to an official Rolex service centre or a specialised watchmaking atelier.

Yes, it is entirely possible. A quality aftermarket strap with a 20-millimetre lug width and correct attachment depth will function perfectly. However, verify that the material and colour harmonise with your 18-carat white gold case. Premium alligator in black, Italian vegetable-tanned leather, or shell cordovan are structurally and aesthetically compatible. Avoid straps with miscalibrated spring bars—the attachment's structural integrity must be impeccable.

Longevity depends on material type, usage patterns, and maintenance discipline. Premium alligator lasts 5–7 years with regular wear; shell cordovan 7–10 years; Italian vegetable-tanned leather 3–5 years in humid climates, longer in arid conditions. Leather does not deteriorate poorly—it develops characteristic patina. Protecting the strap from salt water, excessive perspiration, and direct sunlight significantly extends functional life. Annual conditioning with natural wax or oil preserves fibre flexibility.