346 / SR712SW battery equivalent

Also sold as SR712SW. 1.55 V with a flat discharge curve — the usual choice for quartz watches.

Chemistry

Silver oxide

Voltage

1.55 V

Size

7.9 × 1.25 mm

Inches

0.311 × 0.049 in

Drain

Low drain (SW)

Typical capacity

~9 mAh

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Equivalents by brand

Brand	Number
Renata	346
Energizer / Eveready	346
Maxell / Panasonic / Sony	SR712SW
Varta	V346
Rayovac	346
Bulova	628
Citizen	280-66
Seiko	SB-DH
IEC size	SR712

Also known as

SR712SWV346628280-66SB-DHSR712

What it fits

Ultra-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 SR712SW is about 7.9 mm across and 1.25 mm thick.

FAQ

What battery replaces a 346?

Any of these are common equivalents: 346, SR712SW, V346, 628, 280-66, SB-DH, SR712. They are 1.55 V silver oxide cells, 7.9 × 1.25 mm.

Is 346 the same as SR712SW?

Yes — SR712SW is the IEC / Japanese-brand name for the same 346 cell.

What devices use a 346?

Ultra-thin analog watches