Electric Logo logo
 
 
 
 
Transistorised
Introduction
Bifora
Caravelle
ESA Dynotron
Junghans 600
Seiko and Citizen
Porta PUW
Timex
Xiang Yang
Back to Types
Return to Home page

Citizen were slightly ahead of Seiko in bring an electronic movement to market: the Citizen X-8 Cosmotron of 1967 was the first. Seiko's was the 3100 in 1968 / 1969.

The first group of photographs show some of the movements in the Citizen 7800 Cosmotron range: the 7802A, 7803A and 7804A. To change the date on these watches, you hold them with the dial facing downwards and press the button; to change the day, you press the button with the dial side up!

Citizen Cosmotron Dynamic Cal 7802A

Citizen Cosmotron Cal 7803A

Citizen Cosmotron 3 Cal. 7804A

Photograph below shows the Seiko EL-310 (3703B) movement, launched in April 1971:

Seiko EL-370 Cal 3703B
Valid HTML 4.01 Transitional

Last Modified: Monday, 13-Dec-2010   © Copyright 2004 - 2012