Strap for Big Crown ProPilot Chronograph Stainless Steel / Grey

The lug width of the Oris ProPilot 01 774 7699 4063-07 5 22 06FC is 22 mm. This measurement is specific to this model and must be respected strictly: it is not compatible with 20 mm or 24 mm straps. To verify the measurement, use a digital calliper on the internal base of the lug, between the two springs soldered to the case.

The best strap depends on intended use. For elegance and longevity: alligator with vegetable tanning in dark brown or black, preferably with a stainless steel deployante. For versatile sport-casual wear: smooth calf leather in burgundy, navy blue or medium brown. For authentic aviator heritage: military NATO strap in grey, black or sage green. For summer comfort and grip: butyl rubber in charcoal grey. We recommend choosing based on your primary use case.

Strap removal is straightforward and requires no professional tools. Obtain a spring bar tool or a flat rod. Flip the watch, insert the tool into the opening at the base of one lug, press laterally to compress the soldered spring, and slide the pin outward. Repeat on the other side. Insert the new strap by aligning the holes with the pins, then compress again until you hear the locking click. Verify the strap is secure before wearing the watch.

All straps with a 22 mm lug width are compatible: natural leather (calf, alligator, shell cordovan), NATO textile, sport rubber, synthetic estelon. Milano Straps offers a extensive selection of artisanal 22 mm straps, crafted from carefully selected materials and controlled finishes. Each strap is constructed to last for years with minimal maintenance, preserving the aesthetic and functional value of your watch.

A high-quality vegetable-tanned leather strap, with basic maintenance (occasional cleaning, protection from excessive moisture), lasts 5-8 years of daily wear. The leather develops patina and visible wear marks, which enhance character without compromising function. If exposed to frequent perspiration, constant humidity or marine environments, durability reduces to 3-4 years. An alligator strap with vegetable tanning exceeds 10 years due to superior fibre density. Artisanal Milano Straps use European leather of greater thickness than competitors, further extending longevity.