Omega electronic Chronometer (in dutch: stemvorkhorloge). Had this one. Now I have the Bulova Accutron.
Review: Bulova Accutron II Alpha
Bulova Accutron SpaceView cal.214
Bulova Accutron Spaceview – Elite HNW - High End Watches, Jewellery & Art Boutique
WTS] CHEAP Iconic Electric Watches for repair! Bulova Accutron and Omega F300! – WatchPatrol
Bulova Accutron M3 stainless steel gentleman's wristwatch, circa 1960s, silvered dial with hour baton markers, minute markers and centre seconds, case no.462747, black leather Omega strap with Bulova buckle, 36mm
Show us your vintage Accutron! | Omega Forums
Accutron watch collection of tuning fork and electronic watches
Accutron anyone? | Omega Forums
1970s Vintage Omega Accutron Chronometer f300 Hz – Asia Timepiece Centre
Accutron Watch | Accutron Watches for Sale UK | Accutron Men's Watch