337 battery equivalents
The 337 is a 4.8 × 1.65 mm silver-oxide cell, used in very small women's quartz watches and jewelry watches. It's sold under several names: SR416SW.
Equivalents
| Sold as | Type | In a watch |
|---|---|---|
| SR416SW, 337 | Silver oxide, low drain | Best for an ordinary analog quartz watch |
Never use a lithium coin cell in its place. Lithium cells run at 3 volts, twice what a silver-oxide watch movement expects.
Getting a 337 changed
Watch shops in our directory list battery changes from $4.99 to $115, with a median of $15, usually done while you wait. A shop has the tools to open a screw-down caseback without marking it, and can replace the gasket and pressure-test a water-resistant watch. 455 shops in the directory list battery replacement. To do it yourself, follow how to change a watch battery.
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Questions
- How long does a 337 battery last?
- In a typical analog quartz watch, two to five years. It holds about 7–8 mAh; a running chronograph, a backlight or an alarm drains it faster. Unused cells keep for several years in the pack.