Seiko 5126 Movement Details

Seiko caliber 5126 is an automatic watch movement produced from around 1969 until 1971.
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Sub-brands: Seiko 5
Day / date?Day + date
GMT / world time?No
Chronograph?No
Hacking?No
Rate:19,800 bph
Number of jewels:23
Size / diameter:25.6mm
Height:5.3mm
Stem code: 354016, 357001
Balance wheel code: 310003
Mainspring code: 401013
Date wheel code: 801003
Screw codes: 012123 (stud screw), 012237, 012262, 012263, 012327, 012346, 012347, 012412, 012413 (screw for oscillating weight), 012508, 012658, 012660, 012701, 012718, 012724 (dial screw), 012726 (case screw), 012728
Development division:Daini (Kameido, Tokyo)
Notes:Produced for the Japanese domestic market (JDM).
Related movements: 5106

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