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View picture in original size
Fig. 1

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Fig. 2

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Fig. 3

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Fig. 4

Alpina 1722 (Moeris 19'''D)

Features
stem wind and set
sub second

Data
19''', Dm= 42.5mm, Do= 43.15...43.3mm
H= 4.15mm
F= 0.4mm
T= 2.1mm
15 jewels
f = 18000 A/h
power reserve 35h

Balance staff U1079

Stem W1578

Mainspring / battery
Zf3045, 1.50 x 17.0 x 0.21 x 490mm

Hands
2.00 x 1.10 / 0.20mm

Comments about the data

Remarks
hunter calibre
options: bimetallic screw balance, Breguet hairspring, Reed's regulator
lever and escape wheel brass (Fig.1) or steel (Fig.3)
differences not known between 294, 1722

family:
open face / hunter respectively:
291/292 : H= 5.25mm, Breguet hairspring
293/294 : H= 4.14mm, Breguet hairspring
1719/1720: H= 5.25mm, flat- or Breguet hairspring
1721/1722: H= 4.14mm, flat- or Breguet hairspring

Example, year: signature; shock device
1-2) ca. 1920: 1722
3-4) ca. 1925: 1722

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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