Find your model
Casio watch batteries
Casio digitals are not one cell. Many F-91W / A158 / DW-5600-class modules use CR2016; others use CR1616, CR2025, CR1216 or silver-oxide sizes. Read the module number on the caseback or the model page — do not assume every G-Shock or vintage Casio takes the same battery.
Size chart
| Retail size | Also called | Tab colour | Approx. size | Notes |
|---|---|---|---|---|
| CR2016 | CR2016 | — | Ø 20 × 1.6 mm | Common on F-91W / A158 / many DW-5600 modules |
| CR1616 | CR1616 | — | Ø 16 × 1.6 mm | Smaller diameter than CR2016 (e.g. A100WE) |
| CR2025 | CR2025 | — | Ø 20 × 2.5 mm | Thicker than CR2016 (e.g. AE-1200, DBC-32) |
| CR1216 | CR1216 | — | Ø 12.5 × 1.6 mm | Small coin (e.g. LA670) |
| SR920W / 371 | SR920W | — | Ø 9.5 × 2.1 mm | Silver oxide — e.g. AQ-230 analogue/digital |
| SR626SW / 377 | SR626SW | — | Ø 6.8 × 2.6 mm | Silver oxide — e.g. MQ-24 / some vintage A158 (module 1330) |
Power types
| Generation / model | Battery | Replaceable? | Notes |
|---|---|---|---|
| F-91W / A158WA / A159WGEA (module 593 family) | 1 × CR2016 | Yes | Current official: CR2016. Do not assume historical SR626SW answers for current stock. |
| DW-5600E current (module 3525) | 1 × CR2016 | Yes | Confirm module on the caseback — older DW-5600A uses module 1545. |
| DW-5600A historical (module 1545) | 1 × CR2016 | Yes | Same cell family as many DW-5600s, different module — verify caseback. |
| W-800HG (module 3092) vs W-800H (module 3240) | 1 × CR2025 (both; different modules) | Yes | Same cell, different modules — confirm caseback. Current W-800H-1AV is module 3240. |
| GA-100 (module 5081) | 1 × CR1220 | Yes | Not CR2016 — smaller coin cell on this ana-digi. |
| DW-6900 current (module 3230) vs DW-6900A (1289) | 1 × CR2016 | Yes | Same cell family across generations — verify module on caseback. |
| MQ-24 / vintage module 1330 | 1 × SR626SW | Yes | Silver oxide — also seen on some vintage A158 generations. |
| AE-1200 / databank CR2025 models | 1 × CR2025 | Yes | Not CR2016 — thickness differs. |
| Solar / rechargeable Casio (CTL, MT, ML…) | Not a CR/SR swap | No | Rechargeable Casio packs are not coin-cell replacements. Do not force a CR/SR into a solar or CTL/MT/ML system. |
| Module unknown | Identify module first | No | Open the caseback marking or model page. We only publish when model→module→battery evidence joins. |
Matching devices
- Casio F-91W
- Casio A158WA-1
- Casio A159WGEA
- Casio A168WA-1
- Casio G-Shock DW-5600
- Casio DW-5600A
- Casio DW-6900A
- Casio AE-1200WH-1AV
- Casio A100WE-1A
- Casio AQ-230A-7AVT
- Casio LA670WGA-1
- Casio CA-53W-1
- Casio DBC-32-1A
- Casio F-105W-1A
- Casio B640WC-5A
- Casio W-217H-1AV
- Casio A171WE-1A
- Casio W-800HG
- Casio W-800H-1AV
- Casio A700W-1A
- Casio AE-1000W-1AV
- Casio LF-20W-1A
- Casio GA-100-1A1
- Casio DW-6900-1V
- Casio MQ-24
- Casio DB-36
- Casio AW-590
- Casio AW-80
- Casio W-87H
- Casio W-753
- Casio AW-510
- Casio G-100
- Casio DW-8000
- Casio DW-003
- Casio G-2900
- Casio G-2500
- Casio EF-305
- Casio MRG-1
- Casio F-E10
- Casio G-056
- Casio DW-8600J
- Casio AW-582
- Casio G-2110
- Casio G-200
- Casio Edifice ECB-10 (Module 5638)
Still not working?
Only after the correct cell and polarity: some modules need a reset after battery change. If the watch is water-resistant, prefer a watchmaker for gasket reseal.