Original For SONY LR521 AG0 Button Batteries SR521SW 379A 379 179 D379 SR63 1.5V Alkaline Coin Cell Silver OxideWatch Battery
$4.19
Today it costs $4.19 on AliExpress. Since Oct 22, 2026, when we started tracking it, the price hasn't changed. We haven't tracked it long enough yet to say whether it's on sale.
We have tracked this product for less than a day; confirming a drop takes at least 3 days. The store advertises "was $5.59", but that is the store's own claim; we only state discounts our price history proves.
View on AliExpressAffiliate link: we earn a commission on completed purchases, and the price is the same with or without our code. The price above is the last recorded reading, not a live checkout lookup.
Price history
$4.19
We started tracking this price on Oct 22. The chart takes shape over the days: we only draw prices we observed.
| Store | Original. Button Cell Store |
|---|---|
| Product rating | — |
| Store rating | — |
| AliExpress category | Consumer Electronics › Accessories & Parts |
| Recorded readings | 1 |
| First seen | 10/22/2026 |
| Last reading | 10/22/2026, 8:02:20 PM UTC |