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View picture in original size
Fig. 1

AS 1510

Features
manual wind
sweep second

Data
11.5''', Dm= 25.6mm, Do= 26.0mm
H= 3.6mm
F= 0.75mm
T= 1.7mm
17 jewels
f = 18000 A/h
power reserve 39h

Balance staff U1699

Stem W1229

Mainspring / battery
Zf1308, 1.60 x 8.5 x 0.10 x 250mm

Hands
1.30 x 0.90 x 0.20mm

Comments about the data

Remarks
A wheel between barrel and minute pinion allows to place center-second wheel and barrel in the same layer, and thus, regarding former conditions, a rather thin movement, despite the sweep second. The changed revolution direction of the barrel makes an additional wheel in the winding gear necessary.
barrel and setting assembly modified to enable strongly bevelled base plate
1290: -
1291: date hand
1349: day, date
1380: day, date hand, month
1510: for strongly domed dial

Example, year: signature; shock device
ca. 1950: Steelco, Swiss, 17 Jewels - AS 1291
(AS 1380)

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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