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

The Oris Big Crown 01 754 7741 4065-07 8 20 22 features a lug width of 20 millimetres. Although seemingly standard, this dimension is less common in industrial catalogues compared to 18mm or 22mm variants, making it ideal for those seeking bespoke and personalised watch straps. The 20mm width maintains proper proportions between the 40mm case and strap, following the 2:1 ergonomic ratio preferred by Swiss watchmakers specialising in aviator instruments.

For the Big Crown, we recommend materials that honour its functional heritage. Alligator in neutral tones (tobacco brown, anthracite grey) dialogues with the hand-finished case, adding elegance without heaviness. Vegetable-tanned calf is ideal if you desire natural patina development over time. Satin NATO evokes civil aviation, whilst FKM rubber is the most versatile solution for humid environments. Shell cordovan represents the most sophisticated choice, thanks to its natural compactness and aristocratic patina that matures through wear.

The procedure is straightforward and requires no specialised tools. Position the watch on a soft surface (wool cloth), locate the suspension lugs at the case extremities. Using a spring bar tool, gently press the pin laterally towards the case centre until one end of the current strap is freed. Repeat on the opposite side. Insert the pins of your new 20mm strap into the housings, ensuring any deployante is correctly oriented towards the wrist. Verify the locking mechanism by gently tugging the strap before wearing the watch.

Yes, absolutely. The Oris Big Crown 01 754 7741 4065-07 8 20 22 is fully compatible with bespoke and aftermarket 20-millimetre straps. This specific lug width actually opens access to a universe of custom straps that major industrial brands do not produce. We recommend straps with standard 20mm spring bars and verify that the lug passant (attachment point on the case) is suitable. Atelier Casati Milano offers a comprehensive range of personalised options for this measurement.

The longevity of a leather strap depends on material choice and usage patterns. Quality vegetable-tanned calf maintains functionality for 3–5 years of daily wear, developing a fascinating patina over time. Alligator is more durable (5–8 years) thanks to its natural scale structure. Shell cordovan can exceed 10 years with periodic maintenance (light conditioning, natural drying). Factors including perspiration, sun exposure and humid environments accelerate wear. A quality artisanal strap remains repairable by specialists indefinitely.