I am simply cleaning out my parents' estate. My Dad owned several Accutron watches in his lifetime. I am guessing about the date (It does say M5 on the back of the watch) and I have no idea about the Movement Model because i don't want to take the back of the watch off. Anything you can tell me would be greatly appreciated! He passed away last week at the age of 85. As you can see in the pictures, the band was a replacement by Speidel.
Movement Serial No.
Case Serial No.