Manufacturer Seiko Caliber Number Y676 Based On 7S26 Movement Type Automatic, self-winding mechanical Diameter 27.4mm Height 4.8mm thick Jewels 21...
Pulsar
Manufacturer Hattori aka Seiko Instruments Inc. (SII) Caliber Number PC33A, PC33 Type Quartz Size 10.5”’ Diameter 23.7mm Height 4.15mm Jewels...
Manufacturer Seiko Caliber Number Y675 Based On 7S25 Movement Type Automatic, self-winding mechanical Diameter 27.4mm Height 4.8mm thick Jewels 21...