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|Alpina 18'''H6.3 open-face|
stem wind and set
18''', Dm= 40.05mm, Do= 40.8mm
f = 18000 A/h
Mainspring / battery
Zf3641, 2.20 x 16.0 x 0.20 x 460mm
1.70 x 1.02 / 0.30mm
Comments about the data
open face calibre
bimetallic screw balance
lever and escape wheel anodized aluminium
Option: Reed's regulator (cf. Alpina 19'''H6.3 hunter)
early two-section regulator for coarse and fine adjustment (Fig.3)
steel bearing for stem (Fig.4)
two-part crown wheel with big bearing (Fig.4)
This detail is easy to recognise, because the crown-wheel screw head rotates during winding.
This screw is as else common left handed
Attention: The ratchet-wheel screw is also left handed
ebauche or even finished movement from Recta
The variants of open face and hunter with 18''' and 19''' have only base plates with different diameters.
Example, year: signature; shock device
ca. 1910: UH (Union Horlogère)
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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