- Feb 9, 2020
That movement was made by FHF (Fabrique d'Horlogerie de Fontainemelon). Patent CH51482, Mécanisme de remontage et de mise à l'heure, is a patent granted to FHF (mechanism for winding a watch and setting the time).
FWIW, I have an incomplete Le Coultre movement that I believe is a caliber H6, IIRC, (As told to me by the late Kathleen Pritchard.). It is 9 1/4 lignes. It is marked "Le Coultre" under the barrel-bridge and carries a serial number that is close to Ethan's, #12209. The watch was a private label made for "Chas. Bartons, N.Y.". Somehow the balance bridge was lost somewhere between me and the watchmaker I gave it to to work on. I've been looking for a replacement movement for the 18k case for over 15 years. No luck.
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