Citizen Cosmotron Electronic – Ref. 4-790162Y, Februar 1975 GMT Scratches on the leather surface

Scratches on the leather surface

Seiko introduced the Calibre 6110 in the early 1970s – a technically advanced hand-wound movement with 21 jewels that offered a central seconds display for the first time (本中三針

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Seiko 5 Sports SSK036K1 – Automatic GMT (SKX series) Classic SKX look with GMT function : 24-hour hand for dual time (two time zones)

Citizen Cosmotron Electronic – Ref. 4-790162Y, Februar 1975 GMT Scratches on the leather surfaceThis Citizen Cosmotron Electronic dates from February 1975 and was manufactured in one of the last production phases of the legendary Cosmotron series. It therefore belongs to the final generation of electromechanical transitional models between mechanical and quartz technology a fascinating chapter in Japanese watchmaking history. Historical background The Citizen Cosmotron series was introduced in 1966 and was Japan's first electronically controlled