Screw watch balances and balance bridge assemblies to the pillar plates.
What does a Balance Assembler do?
Screws watch balance and balance bridge assembly to pillar plate. Places pillar plate in holding fixture, and positions balance and bridge assembly on plate securing with screws. Tests balance for endshake by gently moving balance, using tweezers, and determining from experience if shake is within acceptable limits. Raises bridge slightly, using tweezers, or disassembles bridge and presses down on reverse side to correct shake. Touches oil-filled hypodermic needle to jewel to oil lower balance jewel prior to assembling. Observes minute parts with aid of loupe and handles parts with tweezers.