- Flip the watch and find the caliber on the caseback (e.g., V157, 4J52).
- Type it into Caliber — results appear instantly.
- Not sure? Pick a Battery / Cell type (SR, CR, or MT/TS) or search Popular Models.
- For solar/kinetic, tick Solar/Kinetic only.
Seiko Caliber Battery / Accumulator Finder
| Caliber | Battery / Cell | Seiko Part | Popular Models | Notes |
|---|
Seiko watch battery basics (quick reference)
If you need a battery for Seiko watch (often searched as battery seiko watch or even the misspelling eiko watch battery), start with the caliber on the caseback—this is what determines the exact Seiko watch battery type and Seiko watch battery size. Our tool works like a live Seiko watch batteries chart: enter the caliber and you’ll see the correct cell (e.g., SR621SW, CR2016) or the rechargeable part used in Solar/Kinetic models.
Quartz (non-solar)
For a battery for Seiko quartz watch, the result will show a silver-oxide (SR) or, less commonly, a lithium (CR) coin cell. Typical Seiko watch battery size examples include SR621SW, SR927SW, or CR2016. Real-world Seiko watch battery life on quartz is usually 2–5 years depending on functions (alarms, lights, chronograph usage).
Solar
Seiko Solar uses a rechargeable accumulator (often noted as MT/TS with a Seiko 3023-xx part). Instead of a disposable coin cell, it recharges from light. Typical Seiko solar watch battery life (accumulator lifespan) is many years; with regular charging, 8–12+ years is common before capacity starts to fade. Keep it in light regularly and avoid deep discharge to maximize life.
Kinetic
A Seiko kinetic watch battery is also a rechargeable energy unit (capacitor/accumulator) charged by wrist movement. Lifespan is similar to Solar when worn consistently. If stored long-term, give it a full charge cycle to maintain capacity.
Price & replacement tips
Seiko watch battery price for standard SR/CR cells is low (a few dollars), while rechargeable Solar/Kinetic parts cost more but last much longer. When replacing:
- Match the exact Seiko watch battery type from the tool.
- Check gaskets and water-resistance after service (especially divers).
- Avoid touching the cell surfaces with fingers; use non-metal tweezers.
- If you’re unsure, have a pro handle it—especially for Solar/Kinetic models.
Use the tool first, confirm the caliber, and you’ll have the correct Seiko watch battery fast—size, type, and part number all in one place.
