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|Hamilton 231 (ETA 2412)|
6.75''', Dm= 15.3mm, Do= 15.55mm
f = 21600 A/h
power reserve 40h
Balance staff U2520 / U3126
for balance with/without screws
Mainspring / battery
Zf1002, 1.40 x 6.5 x 0.07 x 210mm
1.20 x 0.60mm
Comments about the data
Girocap combined settings for escapement wheel
indirectly driven minute allows a very big balance
differences not known between 23, 231, 232
Example, year: signature; shock device
ca. 1965: Hamilton-Logo, Swiss, 17 Jewels - Patented; Kif-Flector
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.
|bidfun-db 21.3 © 02-08-15, mtr-Ranfft|
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