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Fig. 1

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Fig. 2

Unitas 347

stem wind and set
sub second

16.5''' (16.5...17.75'''), Dm= 36.6mm, Do= 37.2mm
H= 4.2mm
F= 0.5mm
T= 1.85mm
15 jewels
f = 18000 A/h
power reserve 43h
power reserve 40h

Balance staff U991

Stem W1418

Mainspring / battery
Zf3394, 1.90 x 15.0 x 0.18 x 450mm

1.50 x 1.15 / 0.26mm

Comments about the data

open face calibre
varying bridge shapes (cf. Alpina 271)
differences not known between 85, 347

83: open face, H= 4.9mm
84 : hunter, H= 4.9mm
85: open face, H= 4.2mm
86: hunter, H= 4.2mm
87: open face, H= 3.7mm
88: hunter, H= 3.7mm

Example, year: signature; shock device
ca. 1940: Swiss Made, 3 Adj., 15 Jewels
(Unitas 85)

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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