Hmmm, I've got a working sensor alarm somewhere.
About the Certina with the orange strap, it has a certain "look" but I'd rather have it with the original bracelet. Oh wait....
I've got one
Or find a period (looking?) replacement in my parts pile:
(Bear brand bracelet)
This Seiko bracelet is a nice fit!
Or a nice leather strap :)
hmmm, battery is dead :(