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View picture in original size
Fig. 1

View picture in original size
Fig. 2

FEF 6660

manual wind

6.75 x 8''', Dm= 15.35 x 17.8mm
Do= 15.35 x 18.2mm
H= 3.45mm
F= 0.8mm
T= 1.6mm
17 jewels
f = 21600 A/h
power reserve 47h

Balance staff U3433

Stem W1175

Mainspring / battery
Zf1298, 1.60 x 7.5 x 0.08 x 250mm

1.00 x 0.55mm

Comments about the data

differences not known between 6660, 6662, 6663

Example, year: signature; shock device
ca. 1980: Bucherer, Swiss, Adjusted 3 Pos., 17 Jewels; Incabloc
(FEF 6664)

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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