Seiko Crown Diashock 21 Jewels – historischer Vorläufer der Grand Seiko – Referenz J15003 – frühe 1960er Jahre – frisch revidiert Quarz and each strap is unique

and each strap is unique

1437 / 6500 worldwide

and Time Gear

Seit über 400 Jahren wird weiches Hirschleder mit japanischem Lack veredelt

Seiko Crown Diashock 21 Jewels – historischer Vorläufer der Grand Seiko – Referenz J15003 – frühe 1960er Jahre – frisch revidiert Quarz and each strap is uniqueAn elegant and historically significant Seiko Crown Diashock 21 Jewels, reference J15003, from the early phase of modern Seiko manufacturing development. The Crown is one of the most important models in Seiko's history, as it directly led to the development of the first Grand Seiko in 1960. Many design elements of the Crown caliber formed the basis for the early Grand Seiko movements. The present example is in very good vintage condition and was fully