Quartz Pendulum Bob 2 1/8" is a brass finished pendulum bob to be used with quartz clock movements: 74-774, 74-776, 74-778, 74-780 to 785, 74-786, 74-787, 74-788, 74-7882 and the pendulum capsule 74-786. Quartz Pendulum 2 1/8" has a brass bob that measures 2 1/8". This pendulum bob fits pendulum Rods 76-070-R1 to 76-070-R4.