Rechargeable Capacitor for Ecodrive only work for the following movement numbers: 5700 A100 B110 B117 E000 E001 E010 E011 E013 E030 E031 E068 E100 E101 E106 E110 E111 E168 E410 G430 G431 G504 G530 H500 H501 H504 H509 H570 H571 J810 BP10 New Genuine factory Citizen Watch part, Rechargeable capacitor MT621, This capacitor will only work for the following movement numbers: 5700 A100 B110 B117 E000 E001 E010 E011 E013 E030 E031 E068 E100 E101 E106 E110 E111 E168 E410 G430 G431 G504 G530 H500 H501 H504 H509 H570 H571 J810 BP10 Note- Please make sure before buying as its not returnable item. Part # 295-51