7206 in good condition is quite rare, my understanding is 6636 in good condition is on quite a different level. You have a very special combo there. Is the watch from the same time as well? Sent from my SM-G925V using Tapatalk
Christopher Ward C900 Harrison Mono Pusher Chronograph (Calibre JJ02). 250 numbered pieces made of the C900 before it was slightly redesigned and became the C9.
Often said you never forget the first time and I certainly will never forget strapping this one on the wrist way back in nineteen sixty six