It's an Oris-own strap with a fancy 'seatbuckle' deployant clasp, like this
My GMT pilot came on a black leather strap with the same seatbuckle clasp system, but have been looking for a while to see if I could pick up one of the fabric ones. Can't find them anywhere.
Yes, another strap question!
Any chance someone could tell me what kind of strap (canvas, synthetic) is on the Oris Pilot?