Seiko 6159 Movement Details

Seiko caliber 6159 is an automatic watch movement. Production started around 1968.
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Day / date?	Date only
GMT / world time?	No
Chronograph?	No
Hacking?	Yes
Rate:	36,000 bph
Number of jewels:	25
Lift angle:	52.4º
Size / diameter:	27.0mm
Height:	5.65mm
Development division:	Suwa (Nagano Prefecture, Japan)
Notes:	Used in early diving watches, including the original "tuna".
PDF guides:	Technical guide : 6159B
Related movements:	6106

Part Codes

Stem code:	372617 (movement side), 373618 (crown side)
Balance wheel code:	310617
Mainspring code:	201595
Date wheel code:	801610
Screw codes:	022150 (stud screw), 022252, 022269, 022270, 022271, 022351, 022372, 022458 (screw for oscillating weight), 022468, 022662, 022677, 022689, 022760, 022761 (dial screw)