335 / SR512SW battery equivalent

Also sold as SR512SW. 1.55 V with a flat discharge curve — the usual choice for quartz watches.

Chemistry

Silver oxide

Voltage

1.55 V

Size

5.8 × 1.25 mm

Inches

0.228 × 0.049 in

Drain

Low drain (SW)

Typical capacity

~6 mAh

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Equivalents by brand

Brand	Number
Renata	335
Energizer / Eveready	335
Maxell / Panasonic / Sony	SR512SW
Varta	V335
Rayovac	335
Bulova	622
Citizen	280-68
Seiko	SB-AB
IEC size	SR512

Also known as

SR512SWV335622280-68SB-ABSR512

What it fits

Ultra-thin dress watches. Confirm the printed number or measure the old cell before you buy — a 0.5 mm height difference will not seat correctly.

IEC names encode chemistry and size. SR is silver oxide, LR is alkaline, and CR is 3 V lithium. The digits are diameter and height in tenths of a millimeter, so SR512SW is about 5.8 mm across and 1.25 mm thick.

FAQ

What battery replaces a 335?

Any of these are common equivalents: 335, SR512SW, V335, 622, 280-68, SB-AB, SR512. They are 1.55 V silver oxide cells, 5.8 × 1.25 mm.

Is 335 the same as SR512SW?

Yes — SR512SW is the IEC / Japanese-brand name for the same 335 cell.

What devices use a 335?

Ultra-thin dress watches