Strap for Big Crown ProPilot Calibre 111 Stainless Steel / Blue / Alligator

The ProPilot lug width is 22 millimetres. This measurement represents the internal distance between the case attachment pins. A compatible strap must strictly respect this dimension to ensure proper fit without lateral play and to protect the keeper from repetitive stress.

The choice depends on intended use. For formal elegance: natural alligator or vegetable-tanned Italian calf leather, which develop patina over time. For daily practice: premium NATO canvas in authentic military green or charcoal grey, offering easy swapping and thermal management. For extreme conditions: black FKM rubber, resistant to fuel derivatives and thermal variation.

The lug pins are removable with a dedicated pin removal tool. Gently push both lateral pins from inside outward, extract the old strap, insert the new one ensuring the lug faces the case, and reinsert the pins. Confirm the new strap has a 22mm lug width.

Yes. Milano Straps offers handcrafted straps for 22mm lugs in selected materials: alligator, calf leather with vegetable tanning, premium NATO canvas and FKM rubber. All straps are produced in Italy or to European construction standards and guarantee precise compatibility with the Oris case attachment.

An alligator or vegetable-tanned calf strap, under daily wear, maintains structural integrity for 4-6 years, developing visible patina. Longevity depends on sun exposure, humidity and frequency of use. A premium NATO canvas strap resists 5-7 years under normal conditions. FKM rubber remains functional for 3-5 years before elastic degradation.