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View picture in original size
Fig. 1

View picture in original size
Fig. 2

Osco 800

Features
manual wind
sweep second

Data
11.5''', Dm= 25.6mm, Do= 26.0mm
H= 3.9mm
H= 3.9mm (winding gear +0.2mm)
F= 0.8mm
T= 2.1mm
17/21 jewels
f = 18000 A/h
power reserve 47h

Balance staff U3214

Stem W3150

Mainspring / battery
1.50 x 10.0 x 0.12mm

Hands
1.40 x 0.90 x 0.18mm

Comments about the data

Remarks
indirectly driven minute allows a relatively big balance and low profile

family:
800: -
850: date

Example, year: signature; shock device
ca. 1970: OS 800; 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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