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Fig. 1

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Fig. 2

Alpina 556 (Felsa 4122)

manual wind
option: sub second

7.75''', Dm= 17.2mm, Do= 17.5mm
H= 2.85mm
F= 0.9mm
T= 1.35mm
17 jewels
f = 21600 A/h
power reserve 40h

Balance staff U2951 / U2517
balance collet 0.7/0.75mm

Stem W2639

Mainspring / battery
1.25 x 6.5 x 0.07mm

1.20 x 0.60mm

Comments about the data

Girocap combined setting for escapement wheel
escapement and barrel different from Felsa 4122

Example, year: signature; shock device
ca. 1965: 816, Alpina 556, Swiss, 17 Jewels; Incabloc

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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