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Seiko

1992 Seiko AGS 5M22-8A10 with dark-blue dial, gold-tone bezel and original two-tone bracelet

Seiko Caliber 5M22: Complete Movement Guide

1992 Seiko AGS 5M22-8A10 with dark-blue dial, gold-tone bezel and original two-tone bracelet
1990s-vintage-watches

Seiko Caliber 5M22: Complete Movement Guide

Seiko 5M22 factory specifications, the AGS charging system, original capacitor and revised rechargeable-unit reserve, with two documented original VWS watches.

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Seiko Scuba 200M 7N35-6020 (1992), original VWS photo of blue dial and two-tone bracelet
1990s-vintage-watches

Seiko Scuba 200M: Vintage Dive Watches Explained

Learn how to identify a vintage Seiko Scuba 200M: compare 5H25 and 7N35 quartz models, original photographed references and the limits of an old 200m marking.

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Close-up of the teal Seiko SUS AGS 5M22-6C30 dial with Arabic markers and date display
1990s-vintage-watches

Seiko AGS: History of the Automatic Generating System

How Seiko AGS turned wrist motion into electricity, from the 1988 launch to Kinetic. Explore 5M22 technology and two original 1990s archive watches.

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