1966 Seiko Chronometer Seikomatic 6245-9000 – TokeiMedic,Seikomatic 39 jewels Chronometer , Cal.6246-9000 case no.6100527 , made in Japan .,Let's talk Seikomatic | Wrist Sushi - A Japanese Watch Forum,1966 Seiko Chronometer Seikomatic 6245-9000 – TokeiMedic,Seikomatic 39 jewels Chronometer , Cal.6246-9000 case no.6100527 , made in Japan .