Pivot lock shoe

Hello there. This looks like an older version of the 15-215 Pivot Shoe, which works with Series 140 Coil balance springs. Unfortunately we have found the newer style shoe does not interface properly with the old springs. Therefore you will be better off replacing the entire coil spring assembly with a new Series 140 system--these systems come with a new shoe already attached. Let me know if you have any questions about this.