Seiko Crown Diashock 21 Jewels – frühe 1960er – Tropical Dial – technischer Urahn der Grand Seiko Paaruhr Large Velcro area for secure

Large Velcro area for secure hold

The moon phase display and lunar cycle display are breathtakingly precise

Explanation of the SEIKO packing coding system

The Heart: Caliber 5625 – Hi-Beat Precision

Seiko Crown Diashock 21 Jewels – frühe 1960er – Tropical Dial – technischer Urahn der Grand Seiko Paaruhr Large Velcro area for secureA significant piece of early Japanese watchmaking: a Seiko Crown "Diashock 21 Jewels" from the early 1960s with a beautifully aged, genuine Tropical Dial and historically, the direct predecessor to the first Grand Seiko. The Crown Foundation of the Grand Seiko: Introduced in 1959 by Suwa Seikosha as an elegant, high end dress watch, the Crown built upon the Marvel but brought significant advancements with the Caliber 560: a larger balance for better