In the second part of the Elgin A-8 “Jitterbug” restoration, the focus shifts to the complete disassembly and cleaning of the movement’s gear train and high-speed escapement. The host carefully removes the balance bridge and the tiny balance wheel, which is specifically designed for the movement’s 108,000 VPH oscillation rate, before proceeding to the pallet fork and the mainspring barrel. After a thorough cleaning of the plates and individual components, the reassembly begins with the installation of the train wheels and the delicate task of seating the bridges without damaging the pivots. The video concludes with the reinstallation of the escapement, where the characteristic high-frequency “jitter” of the balance wheel is once again visible, confirming that the mechanical heartbeat of this precision military timer has been successfully restored.
