IWC Big Pilot’s Men’s Grey Alligator Leather 22mm to 18mm Wide Watch Strap 26860
Batch number: 26860 stamped on strap. Your watch strap is 22mm wide where it connects to your watch and is 18mm wide where it connects to your buckle. Your longer strap piece is 13.5cm long and your shorter strap piece is 5.5cm long.