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date: set by changing 20:45-24h
11.5''', Dm= 25.6mm, Do= 26.0mm
f = 18000 A/h
power reserve 42h
Balance staff U2443 / U3143
balance with/without screws
Mainspring / battery
Zf1062, 1.40 x 10.5 x 0.12 x 320mm
1.30 x 0.90 x 0.21mm
Comments about the data
differences not known between 73-4, 735-4
73, 731, 733, 735: -
73-2: date mounted on plate
73-4, 735-4: date integrated in plate
suffix N: minor modifications date
Example, year: signature; shock device
ca. 1965: TP, Cort.732, Swiss Made, 21 Jewels; Ruby-Neutro Shock
(Cortebert 732, FHF 73-4)
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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