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View picture in original size
Fig. 1

View picture in original size
Fig. 2

Felsa 177 new

Features
manual wind
sub second

Data
10.5''', Dm= 23.3mm, Do= 23.65mm
H= 3.3mm
F= 0.45mm
T= 1.6mm
16 jewels
f = 18000 A/h
power-reserve 38h

Balance staff U1597

Stem W153

Mainspring / battery
Zf942, 1.35 x 9.0 x 0.10 x 290mm

Hands
1.40 x 0.80 / 0.20mm

Comments about the data

Remarks

family/generations:
177: sub second, without setting-lever spring
177 new: sub second, with setting-lever spring
320: sweep second, with setting-lever spring

Example, year: signature; shock device
1) 1928: 5485. MW (Mido Watch Co., 1924), Swiss Made, 2 Adj., 15 Jewels
(Mido 10.5'''H3.3, Felsa 177)
2) 1935: Mido, Switzerland, 3 Adjusted, 15 Jewels; Incabloc, old design
(Felsa 294, H=4.3mm)

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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