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date: set by changing 21:30-24h
12.25''', Dm= 27.6mm, Do= 28.1mm
f = 18000 A/h
power reserve 45h
Balance staff U3236
Mainspring / battery
1.50 x 0.90 x 0.20mm
Comments about the data
stem mechanism without setting-lever spring
Diafix combined settings for escapement wheel
66A: manual wind
modified hands gear:
66B, 436, 4361: manual wind
6602B: manual wind, date
6606B: automatic, day, date
6619B: automatic, day, date quickset
Example, year: signature; shock device
1968: Seiko, 6602B, Japan, 17 Jewels; Diashock
Not for Sale!
The movements presented in this caliber finder are not for sale. This is only a data sheet for identification and evaluation of the movement calibre, as well as for approximate dating.
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