The 394 watch battery, also known as SR936SW, is a 1.55V silver oxide button cell about 9.5mm across and 3.6mm high. This page brings together every 394 battery we stock, all genuine Japanese cells from Maxell, Murata, Seiko and Seizaiken.
The SW at the end of SR936SW tells you it is a low drain cell, made for analogue watches with a low power draw. Not sure which battery you need? Search any code in our watch battery chart.
UK delivery is free on every order.
