CASIO G-SHOCK G-STEEL GST-B1000BD-1ADR SOLAR MEN WATCH

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

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Frequently Asked Questions

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