Seiko M516-4009 voice-recorder from 1983. Has the ability to record two (tone) messages (one each of eight and four seconds) through speaking directly into the built-in microphone. This voice data is actually stored onto two solid state RAM memory modules (16k each). The case itself of this model is special in that it was constructed of carbon-fibre (the use of which at the time being quite a revolution) and stainless-steel. The unit has, in addition to the recording mechanism, the usual features, such as a stop-watch, an alarm, illumination, a day-date display and an hour-chime. Oh yeah, best of all, it features in the film Ghost Busters! What a watch.

SEIKOS WITH M516