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View picture in original size
Fig. 1

View picture in original size
Fig. 2

View picture in original size
Fig. 3

At. Brossard 18'''

Features
key wind and set
sub second

Data
18''', Dm= 40.05mm, Do= 40.85mm
H= 5.0mm
F= 0.5mm
15 jewels
f = 18000 A/h
power reserve 30h

Stem key 1.40˛mm

Mainspring / battery
Zf3554, 2.10 x 15.0 x 0.19 x 430mm

Hands
1.75 x 0.60 / 0.22mm

Comments about the data

Remarks
layout Lepine-Calibre V
straight lever (ligne angulaire) with hidden pallets
single roller, impuls jewel still with elliptical cross section (Fig.3) and not as later with D-shape cross section
flying barrel with Geneva stopwork
The last two letters of the case signature are a bit uncertain, but likely the movement was finished by Albert Brossard.

Example, year: signature; shock device
ca. 1860: - 5221, P

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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