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|Emile Juillard 18.5''' (Bulla)|
stem wind and pin set
18.5''', Dm= 41.4mm, Do= 42.1mm
f = 18000 A/h
2.00 x 0.62 / 0.28mm
Comments about the data
open face calibre
micrometer screw for cylinder slide
Patent remarks likely Swiss Patent 22281 (Fig.3):
It contains among others a screw, turned over a slot in its end A, moving the cylinder slide with its head B.
filed 07-05-1931, Emile Juillard (CH)
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.
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