Bulova 1969 Accutron
Bulova Accurton 214 Waterproof
10 k gold filled bezel - Stainless steel
M9 is the date symbol M is 1960 and 9 is 9, 1969 watch.
Crystal changed out to look like spaceview.
Speidel expansion band
History: Purchased by my parent in 1969 for Christmas and Birthday. It would be my 21 birthday. Crystal was changed to look like a spaceview by the watcher/jeweler.