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Fig. 1

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Fig. 2

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Fig. 3

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Fig. 4

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Fig. 5

Emile Juillard 18.5''' (Bulla)

stem wind and pin set
sub second

18.5''', Dm= 41.4mm, Do= 42.1mm
H= 6.5...6.6mm
F= 0.7mm
T= 3.2mm
10 jewels
f = 18000 A/h
power-reserve 39h

2.00 x 0.62 / 0.28mm

Comments about the data

open face calibre
cylinder escapement
micrometer screw for cylinder slide

Patent remarks likely Swiss Patent 22281 (Fig.3):
filed 07-05-1931, Emile Juillard (CH)
It contains among others a screw, turned over a slot in its end A, moving the cylinder slide with its head B.

Example, year: signature; shock device
1-3) ca. 1905: Rautendelein, Déposé - 5890 37, Brevet+
4-5) ca. 1910: Emile Juillard, Deposé, Brevet+ - 6636 50

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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