he wasn't angry! just bored. its my fault really, I don't exercise him enough so he gets restless it was on another watch I bought advertised as genuine MM strap but strangely enough, no Seiko markings? genuine my rump. damn you ebay!
^FWIW, my marinemaster strap is marked Seiko/DE39AZ/20 on the back of the strap. Speaking of Seiko, here's a 5717 from 1964.
Poor mans memovex. Emphasis on poor. This Master Alarm is well made and she keeps almost perfect time! Apropos of: did you know the Vulcain Cricket has been worn by more U.S. Presidents than any other watch? Yes, I'm a riot at parties