Manufacturer Seiko Caliber Number 4S27, 4S27A Movement Type Automatic, self-winding mechanical Lignes 11.5”’ Diameter 25.6mm Jewel Count 28 jewels Beat...
50 Hours Power Reserve
Brand Orient (Seiko Epson) Caliber Number F7F44 In-House? Yes Movement Type Automatic, self-winding mechanical Jewel Count 24 jewels Beat Rate...
Brand Orient Star (Seiko Epson) Caliber Number F6G42 Movement Type Automatic, self-winding mechanical Jewel Count 24 Beat Rate / Frequency...
Brand Orient Star Caliber Number F6F44 Manufacturer Epson (Seiko Instruments Inc.) Movement Type Automatic, self-winding mechanical Jewel Count 24 Beat...
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The number 7135 makes me think this is going to be the next 3135.
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Used in my Oris 01 635 7500 4164-07 8 20 50.Day date
Good morning, I tried to reset the chronograph hand and the small stopwatch hands as…