Vintage Mens Bulova M3 watch, 10k RGP bezel | WatchCharts
File:Vintage Bulova Accutron Men's Wrist Watch, Date Code M3 (1963), The Watch That Hums, Model 214, The First Model Of Accutron Watches (18413120563).jpg - Wikimedia Commons
Bulova Accutron M3 Spaceview stainless steel gentleman's wristwatch, circa 1963, case no. 463xxx, skeletonised dial with luminous dauphine hands and sweep centre seconds, signed high domed glass with baton markers, Accutron brown