Strap for Big Crown Pointer Date 40 Stainless Steel - Rose Gold / Silver / Bracelet

This model features a lug width of exactly 20mm. This dimension corresponds to the standard proportional ratio in classical watchmaking, where lug width equals 50% of the case diameter (40mm). Measurement is performed by placing a calliper from inner edge to inner edge of the lug, perpendicular to the axis of the spring bar pin. It is critical to distinguish lug width from case diameter: the lug is the available space between the two lateral lugs, not the circumference of the case.

Recommended strap options for this model include alligator with vegetable tanning (honey or dark brown tones), vitello shell cordovan, Cordura NATO, or fluoroelastomeric rubber. Selection depends on usage context: alligator offers aesthetic nobility and patina development, cordovan ensures extended durability and positive ageing, NATO preserves the sporty profile with versatility, and rubber transforms the Big Crown into a pure instrument for aquatic environments. All these materials accommodate the 20mm lug width without modification.

Strap replacement requires a specialised tool: a spring bar removal tool. Position the watch on a soft surface (cotton cloth), identify the pin connecting the lug to the strap, insert the tool's tip into the pin's slot, apply gentle pressure to compress the internal spring, and slide the pin outward. Once the old strap is removed, insert the new strap by first hooking one side of the lug, then aligning the opposite side and snapping the pin into position. Verify that the pin is fully seated by checking lug movement: there should be no lateral oscillation.

Yes, the aftermarket offers numerous 20mm lug width options. Customised straps in alligator, vitello, cordovan, vegetable leather, NATO, and technical rubber are available from specialised artisans and online retailers. It is essential to verify that lug width is exactly 20mm: a 0.5mm deviation causes lug misalignment and mechanical stress on the spring bars. Bespoke artisanal workshops, such as Casati Milano, produce custom straps tailored to personal specifications of colour, texture, and leather type.

Durability varies significantly according to material and usage conditions. An alligator strap with vegetable tanning, subjected to moderate daily wear and periodic maintenance (cleaning with damp cloth, conditioning with natural wax 2-3 times annually), maintains structural integrity for 5-7 years. Vitello shell cordovan, thanks to superior material density, extends this lifespan to 8-10 years. Constant exposure to water, perspiration, and direct sunlight reduces durability by 30-40%. Fluoroelastomeric rubber straps, less biologically degradable, achieve 10+ years if not exposed to mineral oils, chemical solvents, or temperatures exceeding 60°C.