Seiko 7017 Movement Details

Seiko caliber 7017 is an automatic watch movement. Production started around 1970 and production finished in 1972.
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Sub-brands: Speed Timer, Seiko 5
Day / date?Day + date
GMT / world time?No
Chronograph?Yes
Rate:21,600 bph
Number of jewels:21
Lift angle:53º
Size / diameter:27.0mm
Height:5.9mm
Stem code: 354022 (short), 357002
Balance wheel code: 310020
Mainspring code: 201046
Date wheel code: 801010
Screw codes: 012123 (stud screw), 012277, 012281, 012354, 012415, 012417, 012423, 012424, 012539 (second reduction wheel screw), 012736, 012919 (ratchet wheel screw)
Development division:Daini (Kameido, Tokyo)
Notes:Claimed to be the world's thinnest chronograph movement when it was released. It's a flyback chronograph, meaning the counting hand can be reset to zero while still running.
Related movements: 7005 7016 7018

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