IWC PORSCHE DESIGN SPORTIVO 3742 TITANIUM STRAP BAND BRACELET 19MM LINK BUCKLE IN USED CONDITION. FIT OLDER PRODUCTION IWC TITANIUM PORSCHE DESIGN 3742 CHRONOGRAPH DATE. BUCKLE ONLY, WATCH AND BAND ARE NOT INCLUDED. THIS IS THE OLDER VERSION WHICH USE BUILT IN / INTEGRATED SPRING PIN. THE LAST PICTURES SHOWS THE COMPARISON WITH THIS OLDER SPRING BAR ONE AND NEWER PIN AND BUSHING VERSION. THE TOP LOOK THE SAME BUT THE BOTTOM IS DIFFERENT, NOT INTERCHANGEABLE.