Strap for Big Crown Pointer Date 40 Stainless Steel / PA Charles de Gaulle

The lug width is precisely 20mm. This measurement is specifically calibrated for the 40mm case and requires strap compatibility with exactly 20mm lug spacing. Always verify the strap width with a digital calliper before purchasing an aftermarket strap.

For the Big Crown 01 754 7679 4084-Set LS, we recommend an alligator in vegetable tanning (dark brown or mahogany), which accentuates the aviatory sobriety of the case, or English calf in grey-blue for a contemporary aesthetic. For daily intensive use, a NATO in ballistic canvas (black or military green) maintains instrumental functionality. Natural rubber is ideal for critical conditions.

The Oris Big Crown 01 754 7679 4084-Set LS features fixed lugs (non-spring bar), which simplifies the procedure. Use a spring bar tool to gently push the pin from the ends and release the previous strap. The lug width of the new strap must be exactly 20mm and move without forcing. If uncertain, consult a watchmaker or the specialists at Casati Milano for personalised replacement.

Only straps with 20mm lug width are compatible. On milanostraps.it, a comprehensive selection of 20mm straps is available in alligator, calf, NATO and rubber, all designed to guarantee structural compatibility with the Oris case. Avoid generic straps: the constructive precision of the Big Crown requires certified materials and proportions.

A quality alligator or calf strap, with vegetable tanning, lasts an average of 4–6 years with moderate daily wear. Longevity depends on exposure to moisture, sweat and mechanical wear. A vegetable-tanned strap develops natural patina and can be maintained through periodic polishing, extending its life. A natural rubber strap resists 2–3 years before showing signs of elastic fatigue. Periodic replacement is normal and represents the opportunity to change aesthetics without modifying the watch.