315 / SR716SW battery equivalent

Also sold as SR716SW. 1.55 V with a flat discharge curve — the usual choice for quartz watches.

Chemistry

Silver oxide

Voltage

1.55 V

Size

7.9 × 1.65 mm

Inches

0.311 × 0.065 in

Drain

Low drain (SW)

Typical capacity

~21 mAh

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Equivalents by brand

Brand	Number
Renata	315
Energizer / Eveready	315
Maxell / Panasonic / Sony	SR716SW
Varta	V315
Rayovac	315
Duracell	D315
Bulova	614
Timex	HA
Citizen	280-56
Seiko	SB-AT
IEC	SR67
IEC size	SR716

Also known as

SR716SWV315D315614HA280-56SB-ATSR67SR716

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 SR716SW is about 7.9 mm across and 1.65 mm thick.

Same size, different drain

These cells share the 7.9 × 1.65 mm can. Low-drain (SW) is for simple analog watches. High-drain (W) handles lights, alarms, and chronographs. A modern multi-drain cell can usually cover both.

FAQ

What battery replaces a 315?

Any of these are common equivalents: 315, SR716SW, V315, D315, 614, HA, 280-56, SB-AT. They are 1.55 V silver oxide cells, 7.9 × 1.65 mm.

Is 315 the same as SR716SW?

Yes — SR716SW is the IEC / Japanese-brand name for the same 315 cell.

What devices use a 315?

Ultra-thin analog watches