Battery Cross ReferenceButton cell equivalents

337 / SR416SW battery equivalent

Also sold as SR416SW. 1.55 V with a flat discharge curve — the usual choice for quartz watches.

Chemistry
Silver oxide
Voltage
1.55 V
Size
4.8 × 1.65 mm
Inches
0.189 × 0.065 in
Drain
Low drain (SW)
Typical capacity
~8 mAh
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Equivalents by brand

BrandNumber
Renata337
Energizer / Eveready337
Maxell / Panasonic / SonySR416SW
IEC sizeSR416

Also known as

SR416SWSR416

What it fits

Very small 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 SR416SW is about 4.8 mm across and 1.65 mm thick.

FAQ

What battery replaces a 337?

Any of these are common equivalents: 337, SR416SW, SR416. They are 1.55 V silver oxide cells, 4.8 × 1.65 mm.

Is 337 the same as SR416SW?

Yes — SR416SW is the IEC / Japanese-brand name for the same 337 cell.

What devices use a 337?

Very small analog watches