Casio and G-Shock battery chart: which battery each watch takes

This chart lists every Casio, G-Shock, Baby-G, Edifice and Pro Trek module in the catalog, grouped by the battery Casio lists in its specs. Find the module number on the caseback and look it up below, or search by model reference.

Of the 50 battery-powered G-Shocks in the catalog, the most common batteries are CR2016 (14 watches), SR726W x 2 (9) and CR2025 (8). The catalog also lists 20 solar G-Shocks, which charge from light.

Watches per battery:

CR1616 50
CR2016 36
CR2025 36
SR726W x 2 31
SR920SW 19
SR626SW 11
CR1220 9
CR2032 9
CR1025 4
CR1620 3
SR920W 3
SR927W x 2 3
CR2012 2
SR927W 2
CR1216 1
SR621SW 1
SR916SW 1
SR927SW 1
Solar and rechargeable 129

CR1616

50 watches on 14 modules

Module 3252 about 3 years: BG-169G-1, BG-169G-4, BG-169G-4B, BG-169G-7B, BG-169HRB-7, BG-169M-1, BG-169M-4, BG-169R-2, BG-169R-2C, BG-169R-3
Module 3284 about 5 years: LA-20WH-1A
Module 3472 about 3 years: A700W-1A
Module 3479 about 3 years: A1000ACD-7
Module 3489 about 2 years: BGD-565-1, BGD-565-4, BGD-565-7, BGD-565KRS-7, BGD-565S-7, GM-S5600-1
Module 3503 about 3 years: A100WE-1A, A1100D-1
Module 3523 about 3 years: BGD-565KT-7, BGD-565SC-2, BGD-565SC-3, BGD-565SC-4, BGD-565SJ-2, BGD-565SJ-7, BGD-565SJ-9, BGD-565TW-5, GMD-S5600-1
Module 3531 about 3 years: BG-169CH-9, BG-169PB-2, BG-169PB-4, BG-169PB-7
Module 3551 about 3 years: LF-20W-1A
Module 3559 about 3 years: GLX-S5600-2
Module 3560 about 3 years: A120WE-1A
Module 3561 about 3 years: BGD-10K-2, BGD-10K-4, BGD-10K-6, BGD-10K-7, BGD-10KH-1, BGD-10KKM-1, BGD-10KPP-7, BGD-10L-2, BGD-10L-4, BGD-10L-7
Module 5405 about 3 years: FT-500WC-1BV
Module 5577 about 3 years: MW-620H-1AV, MWA-100H-1A2V

CR2016

36 watches on 25 modules

Module 593 about 7 years: A158WA-1, F-91W-1
Module 3208 about 5 years: CA-53WB-1B
Module 3224 about 7 years: F-108WH-1A, W-218H-1AV, W-219H-1A2V
Module 3229 about 2 years: GM-5600B-3
Module 3230 about 2 years: DW-6900-1V, GM-6900-1
Module 3232 about 2 years: DW-9052-1
Module 3277 about 5 years: BGD-140-1A
Module 3294 about 3 years: B640WB-1B, LW-204-1A
Module 3298 about 7 years: A168WA-1
Module 3454 about 7 years: B650WB-1B, W-217H-1AV
Module 3509 about 3 years: DW-B5600AH-6
Module 3525 about 5 years: DW-5600AI-1, DW-5610BEP-2
Module 3552 about 2 years: GD-B500-1
Module 3564 about 2 years: WS-B1000-1AV
Module 3565 about 2 years: ABL-100WE-1A
Module 3567 about 2 years: GMD-B300-1
Module 5472 about 5 years: AEQ-200W-1AV
Module 5522 about 5 years: GA-700-1A, GA-710-1A
Module 5554 about 2 years: GBA-800-1A
Module 5555 about 2 years: GMA-B800-1A
Module 5618 about 2 years: ECB-10AT-1A, ECB-10P-1A, ECB-10PB-1A
Module 5637 about 7 years: GA-900-1A
Module 5638 about 2 years: ECB-20D-1A, ECB-20DC-1A
Module 5686 about 2 years: ECB-30P-1A
Module 5708 about 2 years: ECB-40MU-1A

CR2025

36 watches on 30 modules

Module 2575 about 10 years: STR-300-1C
Module 3157 about 3 years: SGW-100-1V
Module 3198 about 10 years: AE-1000W-1A3V
Module 3199 about 10 years: AE-2000W-1AV
Module 3239 about 10 years: W-96H-1AV
Module 3240 about 10 years: W-800H-1AV
Module 3263 about 7 years: GD-100-1A
Module 3299 about 10 years: AE-1200WH-1AV
Module 3427 about 7 years: GD-120CM-5
Module 3458 about 10 years: AE-1400WH-1AV
Module 3464 about 3 years: GBD-800-1
Module 3466 about 3 years: WS-2100H-1A2V
Module 3484 about 10 years: DW-291H-1AV
Module 3485 about 10 years: WS-1200H-1AV
Module 3486 about 3 years: GMD-B800-1
Module 3487 about 10 years: MWD-100H-1AV
Module 3488 about 10 years: W-737H-1A2V
Module 3507 about 10 years: WS-1300H-1AV
Module 3517 about 10 years: MWD-110H-1AV
Module 3556 about 10 years: WS-1600H-1AV
Module 3562 about 10 years: WS-1700H-1AV
Module 3569 about 10 years: GD-010-1
Module 5479 about 10 years: AEQ-110BW-9AV, MWQ-100-1AV
Module 5565 about 10 years: HDC-700-1AV
Module 5594 about 2 years: GG-B100-1A
Module 5601 about 2 years: PRT-B50-1, PRT-B50-4, PRT-B50YT-1
Module 5602 about 2 years: PRT-B70-1, PRT-B70-2, PRT-B70-5, PRT-B70T-7
Module 5641 about 2 years: GBA-900-1A
Module 5679 about 10 years: AEQ-120W-1AV
Module 5735 about 10 years: GA-010-1A

SR726W x 2

31 watches on 8 modules; each watch takes two SR726W batteries

Module 5001 about 2 years: BGA-110-1B2
Module 5338 about 2 years: BA-110-1A, BA-110-7A1, BA-110-7A3, BA-110BC-2A, BA-110BC-9A, BA-110GA-1A, BA-110GA-7A1, BA-110LSB-4A, BA-110PD-2A, BA-110PL-1A, BA-110PL-7A1, BA-110PL-7A2, BA-110RG-1A, BA-110RG-4A, BA-110RG-7A, BA-111-1A
Module 5508 about 2 years: BGA-230SA-4A
Module 5590 about 3 years: GA-2000-2A
Module 5607 about 2 years: BA-130CV-2A, BA-130PM-4A, BA-130SP-4A, BA-130SP-7A
Module 5611 about 3 years: GA-2100-1A, GA-2110ET-2A, GAE-2100GC-7A, GM-2100-1A, GM-2110D-2A, GMA-S2100-1A
Module 5674 about 3 years: GA-2200BB-1A
Module 5690 about 2 years: GA-B001-1A

SR920SW

19 watches on 10 modules

Module 5340 about 3 years: EFB-109D-1AV
Module 5344 about 2 years: EFV-650D-2AV, EFV-650D-3AV
Module 5345 about 2 years: EFV-610D-3CV
Module 5405 about 3 years: FT-500WC-1BV
Module 5434 about 3 years: MCW-100H-1A3V
Module 5490 about 3 years: MCW-200H-1AV
Module 5579 about 3 years: EFB-680D-1AV, EFB-680D-2BV, EFB-700D-1AV, EFB-700D-2AV, EFB-700D-8AV, EFV-620D-1A2V, EFV-620D-1A4V
Module 5664 about 3 years: EFB-108D-1AV, EFB-108D-7AV
Module 5695 about 3 years: EFR-573HG-1AV
Module 5742 about 3 years: EFB-730D-2AV, EFB-730D-7AV

SR626SW

11 watches on 7 modules

Module 1330 about 3 years: MQ-24-1B, MW-240-1BV
Module 2784 about 3 years: MDV-106-1AV, MTP-1302D-1A1V
Module 3363 about 3 years: LRW-200H-1BV
Module 5058 about 3 years: MTP-VD01D-2BV
Module 5125 about 3 years: MRW-200H-1B3V, MRW-230H-1E1V
Module 5361 about 3 years: LWA-300H-2EV
Module 5577 about 3 years: MW-620H-1AV, MWA-100H-1A2V

CR1220

9 watches on 7 modules

Module 5081 about 2 years: GA-100-1A1
Module 5146 about 2 years: GA-110-1B
Module 5425 about 2 years: GMA-S110GB-1A
Module 5518 about 3 years: GMA-S120GB-1A
Module 5606 about 3 years: MSG-C100-2A, MSG-C100G-1A, MSG-C100G-7A
Module 5612 about 2 years: GA-140-1A4
Module 5613 about 2 years: GMA-S140-1A

CR2032

9 watches on 9 modules

Module 3403 about 5 years: GD-350-1
Module 3416 about 10 years: W-735H-1A2V
Module 3463 about 10 years: TRT-110H-1A2V
Module 3481 about 2 years: GBD-100-1
Module 3482 about 2 years: GBX-100-1
Module 3502 about 10 years: AE-1500WH-1AV
Module 3506 about 2 years: GBD-200-1
Module 3518 about 10 years: WS-1500H-1AV
Module 3570 about 10 years: AE-1600H-8BV

CR1025

4 watches on 3 modules

Module 5663 about 3 years: GM-S2100B-8A
Module 5706 about 3 years: GM-S110-1A
Module 5730 about 3 years: GM-S2110-2A, GMA-P2100-2A

CR1620

3 watches on 3 modules

Module 3469 about 5 years: LWS-1000H-1AV
Module 3512 about 5 years: LWS-1200H-1A2V
Module 3557 about 2 years: LWS-2200H-1AV

SR920W

3 watches on 2 modules

Module 5154 about 3 years: AQ-230A-2A2VT, AQ-240E-3A
Module 5696 about 3 years: AQ-800E-3A

SR927W x 2

3 watches on 3 modules; each watch takes two SR927W batteries

Module 4334 about 3 years: EFA-120D-1AV
Module 5476 about 2 years: GG-1000-1A
Module 5553 about 3 years: GM-110-1A

CR2012

2 watches on 1 module

Module 2719 about 10 years: MW-600F-1AV, MW-610H-1AV

SR927W

2 watches on 1 module

Module 4369 about 2 years: EF-527D-1AV, EF-527D-2AV

CR1216

1 watch on 1 module

Module 3191 about 2 years: LA-11WB-1Z

SR621SW

1 watch on 1 module

Module 1794 about 2 years: EF-305-1AV

SR916SW

1 watch on 1 module

Module 5359 about 3 years: EFR-S108D-2AV

SR927SW

1 watch on 1 module

Module 5474 about 3 years: MRW-210H-1A2V

Solar and rechargeable: no routine battery change

Solar modules charge a rechargeable cell from light; a few smart models charge mainly from a cable. After many years the cell can wear out; Casio says to have it replaced by a Casio service center or by the retailer you bought the watch from. Casio's specs do not give that cell's type.

Module 3221: GX-56BB-1
Module 3246: PAG-240-1, PAG-240T-7, PRG-240-3, PRG-240-5
Module 3258: PRW-2500-1, PRW-2500T-7
Module 3410: GW-9400-1
Module 3414: PRW-3500-1, PRW-3500T-7
Module 3415: PRG-270-1
Module 3443: PRG-330-1
Module 3444: PRW-3510Y-8
Module 3459: GMW-B5000-1
Module 3475: GBD-H1000-1
Module 3501: MRG-B5000B-1
Module 3513: PRG-340-1, PRG-340-3, PRG-340SC-2, PRG-340SC-5, PRG-340T-7
Module 3515: GBD-H2000-1A
Module 3516: DW-H5600-1
Module 3540: GW-B5600CD-1A2
Module 3542: TRN-50-2A
Module 3553: GW-9500-1
Module 5208: AQ-S810W-1A3V
Module 5230: AWG-M100-1A
Module 5419: EQB-500D-1A, EQB-500DB-2A
Module 5427: ECB-500D-1A
Module 5429: EQB-510D-1A
Module 5445: GAS-100-1A
Module 5497: PRG-600-1, PRG-600YB-2, PRG-600YB-3, PRG-601-1, PRG-601PE-5, PRG-601YB-2, PRG-601YB-3
Module 5512: EQB-800BR-1A, EQB-800DB-1A
Module 5513: GST-B100-1A
Module 5519: EQB-501D-1A, EQB-501DB-2A, EQB-501XBL-2A
Module 5530: EFS-S500DB-1AV, EFS-S641TMS-1A
Module 5544: MTG-B1000-1A
Module 5545: PRG-650Y-1
Module 5548: MSG-S500-7A, MSG-S500G-2A, MSG-S500G-7A, MSG-S500G-7A2
Module 5560: EQB-900DB-2A
Module 5564: EFS-S600D-1A2V, EFS-S600D-1A4V
Module 5571: PRW-6600Y-1A9, PRW-6600Y-2
Module 5576: MSG-S200-7A, MSG-S200D-7A, MSG-S200DG-4A, MSG-S200G-4A, MSG-S200G-7A
Module 5582: ECB-900DB-1A, ECB-900DB-1B, ECB-900DB-1C
Module 5585: EQS-900DB-1AV, EQS-900DB-2AV, EQS-920DB-1AV, EQS-920DB-1BV, EQS-920PB-1AV, EQS-940DB-1AV, EQS-940DC-1AV
Module 5603: OCW-S5000APA-2A, OCW-S5000B-1A, OCW-S5000EK-1A, OCW-S5000F-2A, OCW-S5000MB-1A, OCW-S5000ME-1A
Module 5604: EQB-1000D-1A, EQB-1000XD-1A, EQB-1000XDC-1A
Module 5625: MRG-B2000B-1A
Module 5633: EFS-560HR-1A
Module 5634: EFS-S570D-1A, EFS-S570DC-1A
Module 5636: MTG-B2000B-1A2
Module 5639: EQB-1100XDB-2A, EQB-1100XDC-1A
Module 5657: GST-B400-1A
Module 5659: MSG-B100G-1A
Module 5660: PRW-6611Y-1
Module 5665: OCW-S6000-1A, OCW-S6000BV-1A, OCW-S6000JC-2A, OCW-S6000SW-2A
Module 5672: MTG-B3000B-1A
Module 5673: PRW-61-1A, PRW-61MA-1A, PRW-6900BF-1, PRW-6900YB-3, PRW-6900YL-5
Module 5678: GWG-2000-1A1
Module 5682: PRW-6630NA-1A3
Module 5689: GA-B2100-1A
Module 5691: GM-B2100AD-2A
Module 5698: ECB-2000DC-1A, ECB-2000HR-1A, ECB-2000MFG-1A
Module 5701: OCW-S7000-1A, OCW-S7000A-2A, OCW-S7000B-2A, OCW-S7000D-7A, OCW-S7000SS-2A
Module 5707: ECB-950DB-1A, ECB-950DB-2A, ECB-950DC-1A
Module 5710: ECB-2200DC-1A, ECB-2200HTR-1A, ECB-2200P-1A
Module 5713: GWG-B1000-1A
Module 5719: GR-B300-1A
Module 5728: OCW-S400-2A, OCW-S400-3A
Module 5729: GBM-2100-1A
Module 5732: PRJ-B001B-2, PRJ-B001WM-1
Module 5746: ECB-2300D-2A

Questions

What battery does a G-Shock take?

Check the module: the three- or four-digit number engraved on the caseback. Of the 50 battery-powered G-Shocks in the catalog, the most common batteries are CR2016 (14 watches), SR726W x 2 (9) and CR2025 (8). The catalog also lists 20 solar G-Shocks, which charge from light. Find your module in the chart on this page.

How do I find which battery my Casio takes?

Turn the watch over: the module number (three or four digits) is engraved on the caseback. Find it in the chart, or search by model reference; every model page lists its battery.

How long does a Casio battery last?

Casio's own figures run from about 2 to 10 years, depending on the module. The chart gives the figure for each module.

Do solar Casio watches need a battery change?

Not routinely. A solar module charges a rechargeable cell from light, so there is no regular battery change. After many years the cell can wear out; Casio says to have it replaced by a Casio service center or by the retailer you bought the watch from. Casio's specs do not give that cell's type.