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Fig. 1

Minerva 10

stem-wind chronograph, 60s, 30min, pillar wheel
sub second

19''', Dm= 42.15mm, Do= 42.65mm
H= 7.6mm
F= 0.6mm
T= 2.4mm
7/17 jewels
f = 18000 A/h
power reserve 43h

Balance staff U1076

Stem W1575 / W1853
thread 1.6/1.2mm

Mainspring / battery
Zf3511, 2.00 x 18.0 x 0.22 x 530mm

1.80 x 1.26 x 0.21 / 0.28 x 0.28mm

Comments about the data

open face calibre
options: bimetallic screw balance, Breguet hairspring

3: hunter or open face
9, 27: open face
9CH: chronograph, crown operated
10: chronograph, pusher operated
11: chronograph, split second

Example, year: signature; shock device
ca. 1920: Minerva, Swiss

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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