335 SR512SW Watch Batteries

The 335 battery, also known by its IEC code SR512SW, is a 1.55V silver oxide button cell measuring about 5.8mm across and 1.2mm thick. Here you will find every 335 watch battery we stock, from Renata, Maxell, Seiko, Murata and Seizaiken, so you can pick the brand you prefer.

The easiest way to check you have the right battery is to read the number printed on the old one, then match it to 335 or SR512SW. Silver oxide cells hold a steady voltage for most of their life, which is why watchmakers prefer them for quartz watches.

UK delivery is free on every order, and orders placed before 2pm Monday to Friday are dispatched the same day.

5 products