This movement was made by David Perret of Neuchatel, in 1883 the factory employed 300 employees and built 50,000 movements per year. In 1900 the factory was converted for the construction of electric clocks several times awarded for accuracy and were used in observatories for the transmission of...
this name is in a list of bogus brands with different variants but all fake
" Bielefeld / Bielefeldt / Biefeld / Beefield / C. Beefield / Beifield / Bedefeld / Bidefeldt / Byfield London "
usually German made
Charles Humbert-Ramuz's main business was the construction of ebauches (raw) then according to customer requests. In fact, few of his works were signed. The movement was built by Alcide Droz and Paul Perret.