Rechargeable Battery only work for the following movement numbers: 7821,7828, 7871, 7873, 7876, 7878, 7879,A710, A715, A730, A735, A780, A784, A786,B510,B515,B560,B620,B740,B741,B745, B800, B810, B870, B872, B873, B876, B877, B910, C650, C651, C652, C660, E510, E511, E710, E711, E712, E715, E716, E717, E760, E761, E765, E766, E767, E768, E810, E811, E812, E816, E817, E820, E860, E865, E870, H410, H411, H412, H430, H460, H461, J304, 7W21, 7W71, BR10 New Genuine factory Citizen Watch part, Rechargeable capacitor MT920, This capacitor will only work for the following movement numbers: 7821,7828, 7871, 7873, 7876, 7878, 7879,A710, A715, A730, A735, A780, A784, A786,B510,B515,B560,B620,B740,B741,B745, B800, B810, B870, B872, B873, B876, B877, B910, C650, C651, C652, C660, E510, E511, E710, E711, E712, E715, E716, E717, E760, E761, E765, E766, E767, E768, E810, E811, E812, E816, E817, E820, E860, E865, E870, H410, H411, H412, H430, H460, H461, J304, 7W21, 7W71, BR10 Note- Please make sure before buying as its not returnable item.