Seiko 5206 Movement Details

Seiko calibre 5206 is an automatic (with hand winding) watch movement. Production started around 1970.
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Sub-brands: Lord Matic (LM)
Day / date?Day + date
GMT / world time?No
Chronograph?No
Hacking?Yes
Rate:28,800 bph
Number of jewels:23 or 25
Lift angle:52º
Size / diameter:25.6mm
Height:3.95mm
Development division:Daini (Kameido, Tokyo, Japan)
PDF guides: Technical guide : 5206A
Related movements: 5216 5245 5256

Part Codes

Stem code: 354026
Balance wheel code: 310030
Mainspring code: 201054
Date wheel code: 801017
Screw codes: 012121 (stud screw), 012284, 012285, 012354, 012513 (ratchet wheel screw), 012672, 012673, 012677, 012679, 012726 (case screw), 012744, 012753, 012754