|Index||Timepiece Archive, Categories||Archive: Watch Movements||Timepiece Market|
|Helvetia 846 (AS 1739)|
11.5''', Dm= 25.6mm, Do= 26.0mm
(ball bearing +0.05mm)
f = 18000 A/h
power reserve 36h
Balance staff U2981
Mainspring / battery
1.20 x 9.0 x 0.10mm
1.50 x 0.90 x 0.20mm
Comments about the data
rotor placed out of center
The winding gear is integrated in the movement, instead of attaching it to a manual-wind calibre as usual. This led to a sensationally thin movement at that time.
detached manual wind
escapement from Helvetia
Kif-Duofix combined settings for escape wheel
Example, year: signature; shock device
ca. 1965: Helvetia, 846 - 3822; 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|
...the alternative - free of charge!