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|FHF Robert 18.5'''|
stem wind and set
18.5''', Dm= 41.2mm, Do= 41.85mm
f = 18000 A/h
power reserve 28h
1.90 x 0.55 / 0.26mm
Comments about the data
open face calibre
option: Breguet hairspring
FHF ran several factories in Fontainemelon, and one was named after the founders Fabrique Robert. The calibres produced there are recorded in few registers (pretty poor and contradictionary) under names like Font Robert, FF Robert, FHF Robert.
An ad of R. Vogt & Cie. in Biel from 1920 shows this movement as calibre moderne Vogt 1/2 plat, although with flat hairspring.
Swiss Patent 51482:
setting mechanism without setting-lever spring
filed 05-03-1910, FHF, Fabrique d'Horlogerie de Fontainemelon (CH)
Example, year: signature; shock device
ca. 1915: Vogt - 67, R, +51482
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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