US Patent Issued to ETA SA Manufacture Horlogere Suisse on Oct. 6 for "Watch movement with device for setting the frequency of a mechanical resonator" (Swiss Inventor)

ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,754,515, issued on Oct. 6, was assigned to ETA SA Manufacture Horlogere Suisse (Grenchen, Switzerland).

"Watch movement with device for setting the frequency of a mechanical resonator" was invented by Julien Christan (Bienne, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "The watch movement includes a mechanical resonator with a balance and a spring, a device for setting the oscillation frequency of the mechanical resonator and a device for setting the guide mark on the mechanical resonator. A moving part of the setting device includes a fastener for attaching an outer end part of the spring and a device for defining the active length of the ...