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Fig. 1

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Fig. 2

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Fig. 3

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Fig. 4

Alpina 3335 (Eterna 403)

Features
stem wind and set
sub second

Data
18''', Dm= 40.0mm, Do= 40.6mm
H= 5.4mm
F= 0.5mm
T= 2.1mm
15 jewels
f = 18000 A/h
power reserve 47h

Balance staff U1308/U973
(balance collet 1.2/1.3mm)

Stem W260

Mainspring / battery
Zf3409, 1.90 x 16.0 x 0.20 x 460mm

Hands
1.90 x 1.20 / 0.30mm

Comments about the data

Remarks
open face calibre
bimetallic screw balance with 4 adjustment screws
Breguet hairspring

Example, year: signature; shock device
1-2) ca. 1920: 51614, Alpina 3335
3-4) ca. 1920: 52125, Alpina 3335

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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