Battery

SR920W

1.55V silver oxide button cell

SR920 is a pack label for SR920W — same battery, different name on the package.

Chemistry: silver_oxide
Voltage: 1.55 V
Diameter: 9.5 mm
Thickness: 2.1 mm
Used by: 21 devices

Common uses: Watches · Ana-digi watches

SR920W Diagram

Brand-neutral outline — confirm the tray in your device.

Other names

Genuine aliases and pack labels for this battery — not substitutes of a different chemistry.

371 · SR920SW · SR920 · D371 · V371

Related codes

Same battery / other names

SR920W371

Also sold as

Common retail/watch-trade label

SR920WSR920

Same battery

Same cell family designation

SR920WSR920SW

Also sold as

Common silver-oxide designation variant

Rechargeables are not equivalents

Do not substitute a rechargeable cell unless the device documentation explicitly allows it. Silver-oxide and lookalike chemistries are not interchangeable with rechargeables by size alone.

Size family

Edge thickness in the 9.5 mm family — thicker bar means thicker cell. Not to scale. Highlighted cell is this page.

SR916SW

1.65 mm

SR920W

2.1 mm

SR936SW

3.6 mm

Devices using SR920W

All (21)Watches (21)Seiko (10)Orient (9)Casio (2)

Used in

Watches21 devices

Brands: Seiko · Orient · Casio

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Notes

371 is a common retail/watch-trade label. Keep distinct from alkaline near-sizes.