This is a coil balance spring I need a replacement for two sides. don't know the manufacturer. It is shown in two pieces as it is broken. It has a number stamped into it. 344
Bob from SWISCO responded:
May 10, 2021
See our 15-192. This shoe uses our Series 170 and Series 171 Coil Balances. Watch the video below. For a single spring stamped 344, use the S170-335 3 pound spring.