Seiko 4219 Movement Details

Seiko caliber 4219 is an automatic (with hand winding) watch movement.
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Sub-brands: Seiko 5
Day / date?Day + date
GMT / world time?No
Chronograph?No
Rate:21,600 bph
Number of jewels:23
Size / diameter:23.4mm
Height:5.6mm
Stem code: 351420
Balance wheel code: 310421
Mainspring code: 201420
Date wheel code: 801124, 801305, 801306, 801307
Screw codes: 012123 (stud screw), 012171, 012275, 012459 (case screw), 012468, 012486, 012487, 012488 (screw for oscillating weight)
Development division:Daini (Kameido, Tokyo)
PDF guides: Technical guide : 4219A
Related movements: 4216