Manufacturer Seiko Caliber Number 4R57, 4R57A Movement Type Automatic Lignes 12”’ Thickness 6.63mm Jewels 29 Vibrations Per Hour 21,600 bph...
4R57A
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Manufacturer Seiko Caliber Family 4R Type Mechanical, automatic Lignes 12”’ Diameter 27.4mm Jewels (see below) Vibrations Per Hour 21,600 vph...
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It has stopped working within 6 months. Replaced batthery but doesn't work. I'm pretty sure…
Exciting breaking news for the watch community! Thank you Caliber Corner!
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