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View picture in original size
Fig. 1

View picture in original size
Fig. 2

AS 1866

Features
automatic
sweep second
day: set by +/-24h
date: set by changing 20-24h

Data
11.5''', Dm= 25.6mm, Do= 26.0mm
H= 4.7mm
(ball bearing +0.05mm)
F= 1.8mm
T= 2.4mm
17/21/25 jewels
f = 21600 A/h
power reserve 42h

Balance staff U3113 / U3431
balance collet 0.9 / 0.8mm

Stem W3076

Mainspring / battery
1.00 x 10.5 x 0.12mm

Hands
1.50 x 0.90 x 0.20mm

Comments about the data

Remarks
indirectly driven minute allows a big balance and low profile

family:
18000 / 21600A/h (quick-set) respectively:
1714 / 1860 : manual
1715(1838)/1861(1871): manual, date
1819(1830)/1865(1875): manual, day/date
1716 / 1862 : auto
1717(1839)/1863(1873): auto, date
1820(1831)/1866(1876): auto, day/date

Example, year: signature; shock device
ca. 1970: EW, Swiss, 25 Jewels; Incabloc
(AS 1863)

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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