Watchlords

Seiko’s first wholly in-house automatic movement was the Gyro Marvel, developed in 1959 as an evolution of the Marvel/Laurel hand-wind movement. This was the first Seiko automatic to feature Seiko’s proprietary magic lever mechanism that enables bidirectional transmission of power from the rotation of the winding weight to the mainspring. The addition of the automatic winding module to the already quite tall Marvel (4.40 mm) resulted in a movement 6.55 mm thick and a watch that could not exactly be described as exactly sleek.

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