339 / SR614SW battery equivalent

Also sold as SR614SW. 1.55 V with a flat discharge curve — the usual choice for quartz watches.

Chemistry

Silver oxide

Voltage

1.55 V

Size

6.8 × 1.45 mm

Inches

0.268 × 0.057 in

Drain

Low drain (SW)

Typical capacity

~11 mAh

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Equivalents by brand

Brand	Number
Renata	339
Energizer / Eveready	339
Maxell / Panasonic / Sony	SR614SW
Varta	V339
IEC size	SR614

Also known as

SR614SWV339SR614

What it fits

Thin analog 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 SR614SW is about 6.8 mm across and 1.45 mm thick.

FAQ

What battery replaces a 339?

Any of these are common equivalents: 339, SR614SW, V339, SR614. They are 1.55 V silver oxide cells, 6.8 × 1.45 mm.

Is 339 the same as SR614SW?

Yes — SR614SW is the IEC / Japanese-brand name for the same 339 cell.

What devices use a 339?

Thin analog watches