Model guide · Reviewed
G-SHOCK GMW-B5000: Size, Battery Life, Water Resistance & Specs
Short answer
The G-SHOCK GMW-B5000 is the full-metal stainless steel version of the original square G-SHOCK, with Tough Solar, Multi-Band 6 and Bluetooth.
- Thickness
- 13 mm
- Weight
- 167 g (5.9 oz)
- Water resistance
- 200 m / 20 bar
- Power
- Tough Solar
Casio rebuilt the 1983 DW-5000 shape in stainless steel for the GMW-B5000 (2018), with shock-resistant resin cushioning between the steel case and bezel and a DLC-treated screw lock back. It combines every modern G-SHOCK convenience: solar charging, Multi-Band 6 atomic time and Bluetooth. At 167 g it is more than three times the weight of a DW-5600, and models from 2023 use module 3539 with the CASIO WATCHES app.
GMW-B5000 specifications
Casio's specifications for the stock GMW-B5000D-1. Custom builds can differ; see the notes below.
| Reference | GMW-B5000D-1 |
|---|---|
| Module | 3459, 3539 |
| Display | Digital |
| Shape | Square, full metal |
| Case size (L × W × H) | 49.3 × 43.2 × 13 mm (1.94 × 1.7 × 0.51 in) |
| Weight | 167 g (5.9 oz) |
| Case | Stainless steel case and bezel, DLC-treated screw lock back |
| Band | Stainless steel bracelet |
| Water resistance | 200 m (660 ft, 20 bar) |
| Power | Tough Solar (rechargeable): about 22 months in darkness with power saving on a full charge |
| Tough Solar | Yes |
| Multi-Band 6 (atomic time) | Yes |
| Bluetooth | Yes (CASIO WATCHES app) |
| Light | Full auto LED |
| Launched | 2018; module 3539 from 2023 |
| Casio U.S. list price | $600 |
Features
- Stainless steel case, bezel and bracelet
- Screw lock case back (DLC treated)
- Tough Solar charging
- Multi-Band 6 radio time sync
- Bluetooth smartphone link
- World time
- STN LCD
- Full auto LED backlight
What is the G-SHOCK GMW-B5000?
The G-SHOCK GMW-B5000 is Casio's full-metal stainless steel square G-SHOCK, launched in 2018. It has Tough Solar, Multi-Band 6 atomic timekeeping and Bluetooth, and is a direct descendant of the 1983 DW-5000C.
How heavy is the GMW-B5000?
The GMW-B5000 weighs 167 g and measures 49.3 × 43.2 × 13 mm, according to G-Central's specification sheet. That is about 5.9 oz, more than three times the weight of a resin DW-5600.
Does the GMW-B5000 need battery changes?
No routine battery changes are needed, because the GMW-B5000's Tough Solar recharges its battery from light. Casio's specification, as quoted by WatchReport, rates it about 22 months in darkness with power saving on after a full charge.
How is a metal G-SHOCK still shock resistant?
The GMW-B5000 places shock-resistant fine resin cushioning between its stainless steel case and bezel, according to Casio. A DLC-treated screw lock case back adds wear resistance.
Which app works with the GMW-B5000?
GMW-B5000 models from 2023 onward use module 3539 and the CASIO WATCHES app; earlier module 3459 watches used the G-SHOCK Connected app. The functions are the same, according to G-Central.
Is the GMW-B5000 water resistant?
The stock GMW-B5000 is rated 200 m (660 ft, 20 bar) water resistant, like other G-SHOCKs. It is not an ISO dive watch, and custom finishes should be confirmed with us before swimming.
How much does the GMW-B5000 cost?
Casio's U.S. list price for the GMW-B5000D-1 is $600, as recorded by G-Central. Bezelwright currently lists 4 custom GMW-B5000 builds from $350.
Is the GMW-B5000 right for you?
The GMW-B5000 suits
- People who want the original G-SHOCK shape as a dress-ready steel watch.
- Anyone who wants solar, atomic and Bluetooth in one square watch.
Look elsewhere if
- Anyone who wants a light watch — it weighs 167 g.
- Tight budgets — the list price is $600.
Custom GMW-B5000 builds: what changes
- Our GMW-B5000 builds change finish and color on the full-metal square; metal finishes are applied to the GMW-B5000 case.
- Custom finishes can affect water resistance; confirm a specific piece with us before swimming.
Bezelwright is an independent customizer and is not affiliated with Casio. Specs above describe Casio's stock model.
Custom GMW-B5000 builds (4, from $350)
Shop all GMW-B5000 builds
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Sources
Figures describe Casio's stock reference model. Independent references are used where Casio's own page could not be read directly, and cross-checked against Casio's published specs.
- Casio (U.S.): GMW-B5000D-1 stainless steel square watch (official Casio, accessed October 25, 2026)
- Casio (Middle East & Africa): GMW-B5000D-1 full metal construction (official Casio, accessed October 25, 2026)
- G-Central: G-SHOCK GMW-B5000 specifications (independent reference, accessed October 25, 2026)
- WatchReport: Casio G-Shock GMWB5000D-1 hands-on review (Casio spec) (independent reference, accessed October 25, 2026)
- Casio G-SHOCK (UK): How do solar powered watches work? (official Casio, accessed October 25, 2026)
- Casio G-SHOCK (UK): Are G-SHOCK watches waterproof or water resistant? (official Casio, accessed October 25, 2026)