CASIO G-SHOCK G-STEEL GST-B1000-2ADR SOLAR STAINLESS STEEL MEN WATCH
GST-B1000-2ADR
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- 1 Year Warranty
The G-SHOCK GST-B1000D-2ADR is the G-STEEL on the bracelet it was designed around. Casio developed the solid stainless steel band specifically for the GST-B1000, finished in a mix of hairline brushing and mirror polish and closed with a one-touch three-fold clasp cut from solid steel. Paired with a blue dial, it is the version of this watch that reads as a metal watch first and a G-SHOCK second.
The bezel goes logo-free and carries three separate finishes — vertical hairline, circular hairline and mirror polish — so the surface shifts as light hits it from different angles. Its octagonal shape and brick pattern come straight from the DW-5000C, the first G-SHOCK, which is the only overt nod to heritage on an otherwise pared-back face.
Underneath, the protection is unchanged from the rest of the series: a metal bezel taking impact over a carbon-reinforced resin case, urethane buffering components at the band-to-case joints to absorb shock and reduce stress on the connections, adhesive glass bonding and a compact module. That keeps the case to 11.6mm thick at 118 grams, with 200-metre water resistance, a screw-lock crown, Tough Solar power and Bluetooth time correction.
At a Glance
- BrandCasio G-SHOCK
- LineG-STEEL, GST-B1000 Series
- ModelGST-B1000D-2ADR
- Module5748
- Case Size46.9 × 44.2 × 11.6 mm
- Weight118g
- DialBlue
- BandSolid Stainless Steel
- ConstructionCarbon Core Guard
- PowerTough Solar
- ConnectivityBluetooth
- Water Resistance200m (20 BAR)
Why You'll Love It
- The bracelet was engineered for this watch rather than adapted to it — solid stainless steel, hairline and mirror finishes, and a newly developed one-touch three-fold clasp in solid steel that sits flat and closes securely.
- Three bezel finishes in one component. Vertical hairline, circular hairline and mirror polish catch light differently as the wrist moves, which gives a logo-free bezel something to say without adding a single marking.
- At 11.6mm thick this is unusually slim for a full-metal G-SHOCK, so it clears a shirt cuff instead of fighting it — the practical difference between a watch that works at the office and one that only works at the weekend.
- Tough Solar removes battery changes entirely. From a full charge it runs about five months in normal use with no further light, or roughly 18 months stored in darkness with power saving on.
- Bluetooth pairing keeps the time correct on its own through the CASIO WATCHES app, along with settings, Time & Place and phone finder.
- Urethane buffering at the band-to-case joints is the detail most metal watches skip. It absorbs impact at the point where metal bracelets typically take stress, which is where they usually fail first.
- The octagonal bezel and brick pattern trace directly back to the DW-5000C, so the design has a line to the original G-SHOCK rather than a generic sports-metal look.
Perfect For
- Business to Weekend
- Metal Bracelet Fans
- Slim G-SHOCK Fans
- Solar Watch Users
- Blue Dial Collectors
- Swimming & Water Sports
- First G-STEEL
- Gift for Him
Key Features
- Solid stainless steel bracelet — developed specifically for the GST-B1000, treated with hairline finish and mirror polish, secured by a one-touch three-fold clasp also in solid stainless steel. Adjustable from 150mm to 205mm.
- Logo-free bezel with three finishes — vertical hairline, circular hairline and mirror polishing across one octagonal bezel, with the brick pattern inherited from the DW-5000C.
- Tough Solar charging — solar powered with no battery replacement. Approximately five months of operation on a full charge under normal use with no further light exposure, or roughly 18 months stored in total darkness with power saving active. Low battery alert included.
- Bluetooth smartphone link — pairs with the CASIO WATCHES app for automatic time adjustment, easy watch setting, Time & Place and phone finder.
- Carbon Core Guard structure with urethane buffering — metal bezel guarding against impact over a carbon fibre-reinforced resin case, with urethane buffer components at the band-to-case connections to absorb shock and strengthen the joints.
- Adhesive glass bonding and a compact module — the construction choices that hold the case to 11.6mm thick without giving up shock resistance.
- 200-metre water resistance (20 BAR) with screw-lock crown — rated for swimming, snorkelling and recreational water sports. Not rated for saturation diving.
- Analog display with dual sub-dials — three hands over a 24-hour dial and a day dial, plus a separate date display. The minute hand advances every 10 seconds.
- Super Illuminator LED and Neobrite — high-brightness white LED with afterglow, plus luminous treatment on hands and markers for readability without pressing anything.
- Bio-based resin — key resin components in the case are made with bio-based resin, produced from renewable organic resources.
Technical Specifications
The Casio G-SHOCK GST-B1000D-2ADR is a G-STEEL analog watch on module 5748, built with a Carbon Core Guard structure pairing a stainless steel bezel with a bio-based carbon case. It measures 46.9 × 44.2 × 11.6mm and weighs 118 grams, with mineral glass, a screw-lock crown, Neobrite luminous treatment and a solid stainless steel bracelet with one-touch three-fold clasp adjustable from 150mm to 205mm, rated to 200 metres of water resistance. Power is Tough Solar with no battery replacement, giving approximately five months of normal operation on a full charge without further light or about 18 months stored in darkness with power saving on. It connects over Bluetooth to the CASIO WATCHES app for automatic time adjustment and holds ±15 seconds per month without mobile link.
| Model Number | GST-B1000D-2ADR |
| Case & Bezel Material | Bio-Based Carbon / Stainless Steel |
| Construction | Shock Resistant, Carbon Core Guard |
| Case Size (L × W × H) | 46.9 × 44.2 × 11.6 mm |
| Weight | 118g |
| Glass | Mineral |
| Crown | Screw Lock |
| Water Resistance | 200 Metres (20 BAR) |
| Other | Neobrite |
| Dial Colour | Blue |
| Display Type | Analog |
| Hands | 3 Hands (Hour, Minute, Second) |
| Sub-Dials | 2 (24-Hour, Day) |
| Date | Date Display |
| Light | LED, Super Illuminator with Afterglow (White) |
| Material | Solid Stainless Steel |
| Finish | Hairline and Mirror Polish |
| Clasp | One-Touch 3-Fold Clasp (Solid Stainless Steel) |
| Compatible Band Size | 150mm to 205mm |
| Power Supply | Tough Solar (Solar Powered) |
| Run Time (Normal Use) | Approx. 5 Months After Full Charge |
| Run Time (Power Saving) | Approx. 18 Months in Darkness |
| Energy Saving | Hands Stop in Darkness |
| Smartphone Link | Bluetooth (CASIO WATCHES App) |
| Accuracy | ±15 Seconds Per Month (No Mobile Link) |
| Stopwatch | 1 Second, 30-Minute Capacity |
| Timer | Countdown, 30 Minutes |
| Alarm | Daily Alarm |
| Calendar | Full Auto-Calendar to 2099 |
Best Matched With
- Navy Suit
- White Oxford Shirt
- Grey Blazer
- Light Blue Chambray
- Dark Denim
- Brown Leather Belt
- White Sneakers
Frequently Asked Questions
What is the difference between the GST-B1000D and the GST-B1000?
Same module, same case, same sensors and the same 200-metre rating. The difference is the band. The GST-B1000D runs a solid stainless steel bracelet with a one-touch three-fold clasp, which brings the weight to 118 grams and pushes the watch toward formal wear. The GST-B1000 uses a bio-based resin band and comes in at 58 grams, which is lighter and more casual.
Does this watch ever need a battery change?
No. Tough Solar charges a rechargeable cell from any light source, indoor or outdoor, so there is no scheduled battery replacement. From a full charge it runs about five months in normal use with no further light exposure, and about 18 months if stored in complete darkness with power saving active. A low battery alert warns you before charge runs short.
Is the bracelet adjustable?
Yes. The solid stainless steel bracelet fits wrists from 150mm to 205mm and is resized by adding or removing links. City Chain offers complimentary bracelet sizing at any outlet — bring your warranty book along for the service.
Why does a metal G-SHOCK need urethane parts?
The band-to-case joint is where a metal bracelet transmits impact directly into the case, and it is typically the first point to loosen or fail. Urethane buffering components sit at those connections to absorb shock and reduce stress on the joints, which strengthens the connection rather than simply making it rigid.
Can I swim or dive with it?
You can swim and snorkel with it. 200-metre (20 BAR) water resistance with a screw-lock crown covers swimming, surfing and recreational water sports. It is not rated for saturation diving or use with helium-based gas mixtures. Make sure the crown is screwed down before entering the water.
Do I need the app to use it?
No. All timekeeping and functions work independently. Pairing with the CASIO WATCHES app over Bluetooth adds automatic time adjustment, easier settings entry, Time & Place and phone finder. Without a phone connected the watch holds ±15 seconds per month on its own.
Is 46.9mm too large for my wrist?
It is a substantial watch, but the thickness matters more than the diameter here. At 11.6mm the case sits far flatter than most metal sports watches and clears a shirt cuff comfortably. The bracelet fits wrists from 150mm to 205mm, so if you are near the lower end it is worth trying on in store to check the lug span.
Why does the minute hand move in steps?
The minute hand advances every 10 seconds rather than sweeping continuously. This is normal for the module and conserves power drawn from the solar cell. Timekeeping accuracy is unaffected.
What is the difference between the GST-B1000D colour variants?
All three share the same case, bracelet, module and rating. The GST-B1000D-2A is the blue dial, the D-1A carries accent colours drawn from the first G-SHOCK, and the D-3A is the third tone in the range. Choose on dial colour alone — nothing else changes between them.
Why Buy from City Chain Singapore
- Authorised Retailer Official Casio warranty
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