389 / SR1130W battery equivalent

Also sold as SR1130W. 1.55 V with a flat discharge curve — the usual choice for quartz watches.

Chemistry

Silver oxide

Voltage

1.55 V

Size

11.6 × 3 mm

Inches

0.457 × 0.118 in

Drain

High drain (W)

Typical capacity

~80 mAh

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Equivalents by brand

Brand	Number
Renata	389
Energizer / Eveready	389
Maxell / Panasonic / Sony	SR1130W
Varta	V389
Rayovac	389
Duracell	D389
Philips	389
Bulova	626
Timex	M
Citizen	280-15
Seiko	SB-BU
IEC	SR54
IEC size	SR1130

Also known as

SR1130WV389D389626M280-15SB-BUSR54SR1130AG10SG10

What it fits

Watches with extra features. 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 SR1130W is about 11.6 mm across and 3 mm thick.

Same size, different drain

These cells share the 11.6 × 3 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.

Same size, different chemistry

These fit the same cavity but are not true equivalents. Voltage and discharge curve differ — do not use them as a silent swap in a quartz watch.

FAQ

What battery replaces a 389?

Any of these are common equivalents: 389, SR1130W, V389, D389, 626, M, 280-15, SB-BU. They are 1.55 V silver oxide cells, 11.6 × 3 mm.

Is 389 the same as SR1130W?

Yes — SR1130W is the IEC / Japanese-brand name for the same 389 cell.

What devices use a 389?

Watches with extra features