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View picture in original size
Fig. 1

View picture in original size
Fig. 2

AS 1977-5 (=Durowe 1980)

manual wind

5.75 x 6.75''', Dm= 13.0 x 15.2mm
Do= 13.0 x 15.6mm
H= 3.55mm
F= 0.6mm
T= 1.7mm
17 jewels
f = 21600 A/h
power reserve 44h

Balance staff U2936

Stem W2641

Mainspring / battery
1.60 x 6.0 x 0.06mm

1.00 x 0.55mm

Comments about the data


18000 A/h:
1012: -
1582: minor modifications
21600 A/h:
1677, 1719: -
1777: short plate edges round
1977: stronger mainspring, regulator new
1977-2: balance and barrel new
1977-2, 1978-2: winding gear new
1977-4: balance cock and regulator new
1977-5: click simplified

Example, year: signature; shock device
ca.1980: CD, Swiss Made, 17 Jewels; 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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