[Seiko] Looking to put a new battery in my Grandpa's watch. Does anyone know what kind of battery this watch takes? I don't have a watch back remover and would like to place an order for the tool and the battery at the same time. : r/Watches
Changing the battery on a Grand Seiko SBGV009 | Adventures in Amateur Watch Fettling
Seiko Caliber 7T62 Watch Movement | Caliber Corner