Strap for Big Crown ProPilot Big Day Date Air Racing Edition V

The lug width is 22 millimetres. This width is standard for 45mm cases and ensures optimal proportions between watch case and strap. To verify compatibility, measure the space between the lugs from inside to inside: it must be exactly 22mm.

There is no absolute 'best' — it depends on your use case. For daily wear and formal versatility, alligator in vegetable tanning is the most sophisticated and durable choice. For marine environments, flying, or extreme conditions, FKM rubber is unmatched. Italian regenerated cotton NATO straps represent the best compromise between practicality, sustainability, and avionic aesthetics. Calf leather is the intermediate solution for those desiring softness with longevity.

The process is straightforward: use a spring bar tool (readily available online at minimal cost). Insert the thin lever into the spring bar recess, gently push downward until the pin releases from the lug, then extract the old strap. Repeat on the other side. For the new strap, align the holes with the lugs and insert the spring bars using the tool, ensuring the pin clicks firmly into both seats. No specialist knowledge required.

Absolutely. Any strap with 22mm lug width is mechanically compatible. We recommend choosing from reputable brands that guarantee construction quality: alligator with reinforced stitching, NATO in certified cotton, medical-grade rubber. Avoid overly elastic straps or poor finishes, which diminish the overall perception of the watch. A quality aftermarket strap can significantly enhance your ProPilot.

Durability depends on intensity of use, climate, and cleaning frequency. An alligator strap in vegetable tanning can last 5-8 years with moderate daily use. Calf leather, more delicate, lasts 3-5 years. Rubber is virtually indestructible (15+ years). We recommend regular cleaning with a damp cloth and air-drying, never exposing to direct heat sources. Reverse the strap every 2-3 months to distribute wear evenly.