Seiko 2906 Movement Details

Seiko caliber 2906 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:28,800 bph
Number of jewels:17
Lift angle:49º
Size / diameter:18.0mm
Height:5.35mm
Stem code: 354710
Balance wheel code: 311710
Mainspring code: 401581
Screw codes: 022257, 022282, 022421 (case screw), 022470, 022490 (screw for oscillating weight), 022491, 022764 (dial screw)
Development division:Suwa (Nagano)
PDF guides: Technical guide for 2906A
Related movements: 2919 2949