The Casio Vintage Club | Casio Casiotron 01-501(01), release date 1974 November, this is the debut model, the beginning of Casio wrist watches, the very first model
Casio Casiotron R-17 Vintage Digital LCD Quartz Watch - YouTube
Casiotron X-1 Watches Original Advert 1977 (ref AD6945) – The Nostalgia Shop
Casiotron 04-507 - my earliest Casiotron to date | WatchUSeek Watch Forums