This evening I have begun to repair a 1970 Marlin Calendar and found the hairspring had been pulled.  A few years ago I would have avoided such a repair but with time what once seemed impossible now has become easier.  So let me walk through the repair for you. 1. Here we see the hairspring has been pulled. Note the access window at 5 o'clock.  This window is to allow you to push out the brass wedge pin. 2. NOS hairspring \ balance assembly. 3. Wedge Pin 4. Remove the we