Strap for Big Crown ProPilot Big Day Date Stainless Steel / Black / Bracelet

The lug width of the Oris ProPilot 01 752 7760 4164-07 8 22 08 is 22mm. This measurement corresponds to the distance between the anchor points (lugs) on the case. It is essential to verify this dimension before purchasing an aftermarket strap, as an incompatible lug width will create gaps or irregular overlaps.

Tuscan vegetable-tanned calf leather is the optimal choice for the ProPilot: it maintains balance between formal aesthetics and sporting functionality, develops an organic patina over time, and responds perfectly to the proportions of the 44mm case. If you seek versatility, a NATO strap in grey-blue tones offers contemporary appeal without betraying the model's aeronautical identity.

The process requires a specific tool: a spring bar tool. Position it perpendicular to the lug, compress the anchor pin inward into the case, and slide the strap out of the lugs. Repeat the process in reverse with the new strap. If you do not possess the tool, our partners at Casati Milano provide this service within 24 hours.

Yes, provided the lug width is exactly 22mm. Milano Straps offers a dedicated collection for this specific width, in vegetable-tanned leather, alligator, NATO, and technical rubber. Each strap is tested for mechanical and aesthetic compatibility with the ProPilot's stainless steel case.

High-quality Tuscan vegetable-tanned calf leather offers a lifespan of 3–5 years with moderate daily wear, extending to 7 years with seasonal rotation. Longevity depends on ambient humidity, frequency of wear, and maintenance (periodic cleaning and conditioning). A polyamide NATO strap lasts 5–8 years, whilst technical rubber easily reaches 10 years.