This is an authentic IWC Pilot Le Petit brown calf leather watch strap. The strap has gone matt in places especial at the top of the strap.

Your watch strap is 21mm wide where it connects to your watch and is 18mm wide where it connects to your buckle. Your longer strap piece is 12.5cm long and your shorter strap piece is 8.5cm long.

I have given you photos of your watch strap from every angle. Please use them to add to this description.

If you are not sure if this will fit your watch or if you have any other questions then message me. I'm here to help you.