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View picture in original size
Fig. 1

View picture in original size
Fig. 2

AM 397 (Felsa 397)

manual wind
sweep second

12''', Dm= 26.6mm
H= 4.6mm
15 jewels
f = 18000 A/h
power reserve 45h

Balance staff U864

Stem W890

Mainspring / battery
Zf1398, 1.70 x 10.5 x 0.12 x 320mm

1.50 x 0.90 x 0.22mm

Comments about the data

it is unknown whether the ebauches were made by AM or Felsa
differences not known between 394, 396, 397

390: sub second
391: sub second, no mounting flange
394: sweep second
395: sweep second, no mounting flange
399: sub second, 13'''

Example, year: signature; shock device
1951: Mido 1200B, Made in Switzerland, 3x Adjusted, 15 Jewels - Felsa 390; Superchoc
(Mido 1200B)

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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