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

The lug width is 20mm. This measurement refers to the internal distance between the case lugs where the strap is fitted. To verify it, measure from the inner edge of one lug to the inner edge of the opposite lug, excluding the tubular thickness itself.

The choice depends on intended use: alligator or vegetable-tanned calf leather provide elegance and age beautifully alongside stainless steel; polyamide NATO offers maximum resistance and versatility for sports and diving; natural rubber ensures elasticity even at extreme temperatures and is ideal in marine environments. Technically, all these materials integrate flawlessly with the 40mm case and instrument proportions.

The Big Crown strap is replaced using a spring bar tool or via a specialised watchmaker. Position the watch face-up, locate the lower spring bar, apply light inward pressure to release it, and slide out the old strap. Insert the new strap, ensuring the spring bar clicks firmly into place. The operation requires precision to avoid scratching the case.

Yes, any strap with a 20mm lug width is compatible. We recommend selecting thicknesses that harmonise with the 40mm case—typically between 4 and 5mm—to maintain original aesthetic proportions. Artisanal straps offer greater personalisation and construction quality compared to generic alternatives.

Longevity depends on tanning method and usage. A vegetable-tanned quality strap, worn daily, maintains structural integrity between 3 and 5 years; alligator tends to last slightly longer due to fibre robustness. Exposure to water, perspiration, and UV rays accelerates ageing. Natural rubber has similar lifecycle patterns, but with more predictable degradation curves.