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

The lug width of this Oris model is 20 millimetres, measured internally between the case lugs. This dimension represents the classic standard for 40mm watches and facilitates compatibility with both artisanal and industrial aftermarket straps. To verify the measurement, use a digital calliper positioned between the internal lugs, ensuring the measurement is taken in the cylindrical portion of the case.

Alligator leather in vegetable tanning represents the finest pairing: the reptile's natural grain reinforces the masculine character of the stainless steel case. Vegetable-tanned calf leather is a refined alternative that ages beautifully over time. For sportive environments, vulcanised rubber or NATO textile straps ensure practicality without aesthetic compromise. Your choice should harmonise with the watch's clean, functional design language.

Strap replacement involves removing the spring bars or barrel-shaped pins anchoring the lugs. Position the watch on a soft pad and use a spring bar tool, gently inserting it into the space between lug and lug hole to release the spring mechanism. Once the pin is freed, extract the previous strap. Insert the new strap in the same position, ensuring the pin engages symmetrically in both lug holes. The procedure requires care to avoid scratching the case.

Yes, any artisanal or industrial strap with a 20mm lug width is compatible with this model, provided the lugs and spring bars are intact. Straps from specialised ateliers guarantee construction quality comparable to the original, often exceeding it in material selection and customisation. Always verify the strap's technical specifications—particularly the internal width—to ensure perfect fit without lateral play.

A vegetable-tanned leather strap, worn daily, maintains structural integrity for 18–24 months. Durability depends on buckle wear (if not a deployante), climate and usage frequency. Leather does not wear uniformly: the lug creases and the buckle knot zone experience greater stress. With proper care—avoiding prolonged immersion and occasional damp cloth cleaning—the strap develops a handsome patina that enhances the watch's visual value, even after the first year of intensive use.