CASIO G-SHOCK G-STEEL GST-B1000BD-1ADR SOLAR MEN WATCH
GST-B1000BD-1ADR
- In stock, ready to ship
- Backordered, shipping soon
- 1 Year Warranty
The GST-B1000BD-1ADR is the fully blacked-out G-Steel — every metallic surface finished in black ion plating, from the stainless steel bezel and solid bracelet down to the case back, side buttons, screw-lock crown, tri-fold clasp, and individual screws. The logo-less bezel is a deliberate design choice for the 2026 GST-B1000BD — removing the G-Shock branding creates an uninterrupted metallic surface that shifts between lustrous and matte as light moves across it. The combination of hairline and mirror finishes on the bracelet links adds quiet depth — a watch that changes character depending on the lighting without ever announcing itself.
Module 5748 pairs Tough Solar charging with Bluetooth smartphone link via the CASIO WATCHES app for automatic time correction. Carbon Core Guard structure — bio-based carbon-reinforced resin inner case protected by stainless steel outer bezel — delivers G-Shock shock resistance at 46.9 × 44.2 × 11.6 mm and 118 grams, slimmer and lighter than a full-metal build. 200-metre water resistance with screw-lock crown. Analog display with three hands and two sub-dials (24-hour and day indicator), LED Super Illuminator with Neobrite lume, 1-second stopwatch, countdown timer up to 30 minutes, and daily alarm. Solar powered — no battery changes, ever.
At a Glance
Why You'll Love It
- The purest black G-Steel available. Black ion plating on every metallic component — bezel, band, buttons, crown, clasp, screws, case back — with no contrasting accents breaking the finish. The -1A is the variant for anyone who wants the GST-B1000BD in its most uncompromising, monochromatic form. The hairline and mirror-polished bracelet links create texture and depth in a single colour rather than relying on contrast.
- The logo-less bezel removes the G-Shock branding from the most visible surface of the watch. The result is a clean, architectural face where the structural form speaks for itself — the brick pattern inherited from the original 1983 G-Shock is preserved in the case design, but the bezel surface is uninterrupted black ion-plated steel.
- Carbon Core Guard uses a bio-based carbon-reinforced resin inner case protected by the stainless steel outer bezel. Shock resistance in a slimmer package — at 11.6 mm thick, this wears noticeably flatter than most metal G-Shocks, sitting comfortably under a suit jacket or shirt cuff.
- Tough Solar eliminates battery changes entirely. The solar cell charges from any light source, and a full charge delivers approximately five months of operation with zero light exposure. Power saving extends that to eighteen months by stopping the hands when the watch is stored in the dark. Under normal wear, it runs indefinitely.
- Bluetooth auto time correction via the CASIO WATCHES app means the watch adjusts itself every time it connects to your phone. ±15 seconds per month accuracy even without the connection — effectively perfect with it.
- 200-metre water resistance with a screw-lock crown. The combination of serious water resistance, shock resistance, and a refined all-black metal finish is the G-Steel proposition — tough enough for anything physical, dressed enough for anything formal.
Perfect For
Key Features
- Full black ion plating — Every metallic component coated: bezel, band, case back, buttons, crown, clasp, screws. Hairline and mirror-polished bracelet links for surface depth. The most monochromatic G-Steel variant.
- Logo-less bezel — Unbranded bezel surface for a clean, minimalist architectural look. Brick pattern from the 1983 original preserved in the case structure only.
- Carbon Core Guard — Bio-based carbon-reinforced resin inner case with stainless steel outer bezel. Shock resistant at a slim 11.6 mm profile.
- Tough Solar — Solar-powered, no battery changes. ~5 months on full charge (normal use), ~18 months with power saving. Charges from any light source.
- Bluetooth smartphone link — Auto time correction via CASIO WATCHES app (iOS/Android). Phone finder, easy watch setting, time & place logging.
- 200-metre water resistance (20 BAR) — Screw-lock crown for additional protection. Suitable for swimming, snorkelling, and recreational water sports.
Technical Specifications
| Case & Build | |
|---|---|
| Model Number | GST-B1000BD-1ADR |
| Module | 5748 |
| Case Material | Bio-Based Carbon / Stainless Steel |
| Bezel | Black Ion-Plated Stainless Steel, Logo-Less |
| Construction | Shock Resistant, Carbon Core Guard Structure |
| Glass | Mineral Glass (Adhesive Bonded) |
| Crown | Screw Lock, Black Ion-Plated |
| Case Size (L × W × H) | 46.9 × 44.2 × 11.6 mm |
| Weight | 118 g |
| Water Resistance | 200 Metres (20 BAR) |
| Back | Black Ion-Plated, Engraved |
| Band | |
|---|---|
| Material | Solid Stainless Steel |
| Surface Treatment | Black Ion Plating |
| Finish | Hairline & Mirror Polish |
| Clasp | One-Touch Tri-Fold Clasp |
| Wrist Size | 150 – 205 mm |
| Connectivity | |
|---|---|
| Bluetooth | Yes — Mobile Link (Wireless Bluetooth®) |
| Compatible App | CASIO WATCHES (iOS / Android) |
| App Functions | Auto time adjustment, easy watch setting, time & place, phone finder |
| Movement & Power | |
|---|---|
| Movement Type | Quartz Analog (Solar) |
| Power Source | Tough Solar (Rechargeable Solar Cell) |
| Run Time (No Light) | Approx. 5 months (normal use) |
| Run Time (Power Save) | Approx. 18 months (stored in dark, power save on) |
| Power Saving | Yes — hands stop when stored in dark |
| Low Battery Alert | Yes |
| Analog Display | 3 hands (Hour, Minute — moves every 10 seconds, Second) |
| Sub-Dials | 24-Hour Indicator, Day Indicator |
| Date Display | Yes |
| Accuracy | ±15 seconds per month (without mobile link) |
| Display & Light | |
|---|---|
| Dial | Black |
| Lume | Neobrite (Hands & Indexes) |
| Backlight | LED Super Illuminator, Afterglow |
| LED Colour | White |
| Functions | |
|---|---|
| Stopwatch | 1-second, 30-minute capacity, elapsed time |
| Countdown Timer | 1-second unit, 1 – 30 minutes |
| Alarm | Daily alarm |
| Calendar | Full auto-calendar to 2099 |
Best Matched With
Frequently Asked Questions
Why Buy from City Chain Singapore
Case size (L× W× H): 46.9 × 44.2 × 11.6 mm
Weight: 118 g
Case and bezel material: Bio-based Carbon / Stainless steel
Solid stainless steel band
One-touch 3-fold Clasp
Construction
Shock Resistant
Carbon Core Guard structure
Mineral Glass
Water resistance: 200m
Time adjustment
Bluetooth: Connects to a smartphone and automatically adjusts the time
Power supply and battery life： Tough Solar (Solar powered)
Smartphone Link feature
Mobile link (Wireless linking using Bluetooth®)
Apps
CASIO WATCHES
App connectivity feature
Auto time adjustment
Easy watch setting
Time & place
Stopwatch
1-second stopwatch
Measuring capacity: 29'59 (30 minutes)
Measuring mode: Elapsed time
Timer
Countdown timer
Measuring unit: 1 second
Countdown range : 30 minutes
Countdown start time setting range : 1 minute to 30 minutes (1-minute increments)
Alarm/hourly time signal
Daily alarm
Light
LED light (Super Illuminator)
Afterglow
Light color
LED:White
Calendar
Full auto-calendar (to year 2099)
Energy saving feature
Power Saving (hands stop to save power when the watch is left in the dark)
Battery display/alert
Low battery alert
Run time
Approx. battery operating time:
5 months on rechargeable battery (operation period with normal use without exposure to light after charge)
18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
Accuracy
Accuracy: ±15 seconds per month (with no mobile link function)
Other features
Regular timekeeping:
Analog: 3 hands (hour, minute (hand moves every 10 seconds), second), 2 dials (24-hour, day)
Day indicator
Date display
Phone finder
Extra $15 OFF with min. $200 spend
Use Code: FORYOU15
Extra $30 OFF with min. $400 spend
Use Code: FORYOU30
Delivery within Singapore
Order by 11AM
(Mon - Fri for faster processing)
Checkout options may vary depending on order value and eligibility.
• Free Speedpost Domestic Delivery — 1–2 business days
• Free DHL Domestic Delivery — next business day
• Express Delivery — S$30, order by 2PM
• Click & Collect — ready in 2–3 business days. Please wait for the collection confirmation email before visiting the store.
Weekend & Public Holiday Orders
Orders placed after the applicable cut-off time, on weekends, or on public holidays will be processed on the next business day. Delivery will take place on the next available business day based on the selected delivery service.
During peak periods, festive seasons, major launches or sale events, additional processing and delivery time may be required.
