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Home/Browse/Casio/GA-100
SpecStudio
Casio GA-100
Click to inspect
Casio · G-Shock

Casio GA-100

Ref. GA-100 · Sport

$110Stock unknown
Buy from CasioFind used on eBay

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Case

Diameter
51.2mm
Thickness
16.9mm
Lug-to-lug
55mm
Material
Resin
Water resistance
200m

Crystal & dial

Crystal
Mineral
Dial colour
Black

Movement

Type
Quartz

Design language

Case shape
round
Dial style
matte
Sub-dials
2
Bezel
fixed
Bracelet
rubber
Hands
baton

AI-detected from the product image

G-Shock collection · 101 watches

AWG-M100
AWG-M10046.4mm
DW-5000R
DW-5000R42.3mm
DW-5040RX-7
DW-5040RX-742.8mm
DW-5600
DW-560042.8mm
DW-5610
DW-561043.8mm
DW-5900
DW-590046.8mm
DW-6600
DW-660050mm
DW-6900
DW-690050mm
DW-9052
DW-905243mm
DW-9052GBX
DW-9052GBX46.5mm
DW-B5600
DW-B560042.8mm
DW-H5600
DW-H560044.5mm
88 more in this collection
DWE-5600JBG-5600G-7900G-8900G-SHOCK G-STEEL GST-B500G-Shock GW-M5610GA-010GA-1000GA-110GA-1100GA-2000GA-2100GA-2110GA-2140GA-2200GA-400GBGA-700GA-710GBGA-800GA-900GA-B001GA-B010GA-B2100GA-V01GAS-100GBA-800UCGBA-900GBA-950GBD-200GBD-800GBD-H1000GBD-H2000GBM-2100AGBX-100GBX-H5600GD-010GD-100GD-120CMGD-350GD-400GD-B500GG-1000GG-B100XMGLX-5600KBGM-110GM-2100GM-2110DGM-5600GM-6900GM-700GGM-B2100SDGM-H5600GM-S2110GM-S5600PGGMA-P2100GMA-P2126WGMA-S110XGGMA-S120MFGMA-S140GMA-S2100GMD-B300GMD-S5610BBGMW-B5000GMW-BZ5000GDGPR-H1000GR-B300GST-B100GST-B1000DGST-B400GST-S100GGW-2310UGW-2320FPGW-5000HSGW-6900UGW-7900GW-9400GW-9500GW-B5600GW-M500AGW-M530AGWF-A1000GWF-D1000GWG-B1000GX-56BBRMRG-B2000MRG-B5000MTG-B2000MTG-B3000

6 colorways

Alternatives

01The living market

Asking prices & sales

Tracked on the secondary market, updated through the day. Not appraisals or offers.

Retail$110

No confirmed active listings.

History only · Watch family · 29 weeks, Aug 21, 2017–Nov 3, 2025 · 10 recent or historical posts

  • ·The weekly trend, on a real time scale

Casio on the secondhand market

+10.4%

2026 so far · +0.4% to +22.3% · 46 matched watches

In line with the index

Year-by-year readings →

02The connection engine

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View all alternatives

03The community take

Owners talk.

“
In a nutshell

The Casio GA-100 (ref. GA-100) is a quartz sport watch, with a 51.2mm resin case, 16.9mm thick. Water resistance is rated to 200m, under a mineral crystal. Manufacturer MSRP is $110.

Open the discussion

On real wrists · 1

04The paper trail

Ask the communityStart a discussion about the GA-100 — get takes from other collectors.Ask →

05The discussion

Talk about the Casio GA-100.