Manufacturer Seiko Caliber Number 2906, 2906A Movement Type Automatic Diameter 18mm (casing) Height 5.35mm Jewels 17 Vibrations Per Hour 28,800...
Seiko 5
Manufacturer Seiko Caliber Number 7S26 Replaced By 4R36 Movement Type Automatic Diameter 27.4mm Casing Diameter 27mm Height 4.8mm thick Jewels...