Strap for Big Crown ProPilot GMT Stainless Steel / Grey

The lug width of the Oris ProPilot 01 748 7710 4063-07 5 22 14FC is 22mm. This measurement represents the distance between the two lugs (the pins to which the strap attaches). When selecting an aftermarket strap, always verify this dimension precisely, as variations of even ±0.5mm can compromise comfort and induce unwanted stress on the movement.

The Oris ProPilot 01 748 7710 4063-07 5 22 14FC achieves its finest expression on premium vegetable-tanned leather straps, such as alligator or aged calf, which complement the watch's avionic character. For professional contexts with high moisture exposure, a heavyweight cotton NATO or FKM rubber strap guarantees durability superior to organic materials. Choice depends on use case: boardroom (leather), humid operational environment (rubber), or compromise solution (NATO).

To replace the strap, obtain a spring bar tool or small flathead screwdriver. Position the watch face-up on a soft surface. Gently press the spring bar toward the centre of the case using the tool to release internal spring tension. Once released, the pin should slide freely from the lug. Repeat on the opposite side. Insert the new strap first on one lug, pressing the spring bar gently, then secure the second side. Verify the strap is centred and properly aligned.

Yes, MilanoStraps offers a comprehensive selection of replacement straps compatible with the 22mm lug width, including vegetable-tanned leather, premium NATO, sports rubber, and shell cordovan options. All our straps are sized specifically for this width and tested on Oris models with proportions matching this reference. Visit our 22mm strap page to explore colour, finish, and material options.

A premium leather strap, subject to moderate daily wear in dry, protected environments, maintains structural and aesthetic integrity for 3–5 years. Lifespan depends directly on external factors: sun exposure, humidity, contact with perspiration, and chemical detergents accelerate ageing. Vegetable-tanned calf develops a natural patina that enhances appearance; alligator maintains more stable finish over time. To extend longevity, clean the strap regularly with a soft cloth and apply protective balm every 6–12 months.