Casio G-STEEL GST-B1000-1AER Men's • Tough Solar & Bluetooth • 200 m Water-Resistant

The Casio G-STEEL GST-B1000-1AER is a robust men's watch from the renowned G-Shock family, combining elegant metal design with legendary G-Shock shock resistance. The case is built on the patented Carbon Core Guard construction: a core of carbon fibre-reinforced resin is encased in a stainless steel housing, delivering an exceptional balance of durability and slim profile. The stainless steel link bracelet with hairline and mirror-polished finish gives the watch a timelessly sporty yet refined look that transitions seamlessly from the business environment to outdoor use.

The GST-B1000-1AER is powered by Casio's Tough Solar technology, which absorbs light energy directly through the dial to provide reliable, battery-free operation. Via Bluetooth, the watch connects to the Casio Watches app and automatically synchronises time zones. Additional features include a stopwatch, countdown timer, daily alarm, fully automatic calendar, and LED illumination. The black dial with a three-dimensional pattern and metallic indices is protected by scratch-resistant mineral glass. Water resistance is rated to 200 m.

Key Features of the Casio GST-B1000-1AER Watch

• Tough Solar & Bluetooth: Solar power with automatic time synchronisation via smartphone app for consistently accurate timekeeping without battery changes
• Carbon Core Guard Case: Carbon fibre-reinforced core within a stainless steel case for maximum shock resistance with a slim profile of just 11.6 mm thickness
• 200 m Water Resistance: Ideal for water sports and professional use, combined with a screw-down crown for reliable sealing

Care Instructions for Wristwatches

Care & Cleaning

• Daily: Wipe the case and bracelet with a soft, dry cloth to remove dirt and perspiration.
• Water-resistant watches: Clean with mild soapy water and a soft brush, rinse, dry thoroughly.
  Important: Screw the crown down firmly beforehand!!!
• Not water-resistant: Clean only dry or slightly damp, do not use water or cleaning agents.
• Avoid: Aggressive agents, perfume, cosmetics and heat.
• Leather straps: Do not soak, clean only slightly damp and allow to dry away from heat.
• Water resistance: Do not wear in the shower or bath, have checked annually.
• Battery (quartz): Have a depleted battery replaced immediately.
• Mechanical watches: Service by a master watchmaker every 5 years.

Storage & Handling

• Store the watch separately, not directly with other jewellery (risk of scratching).
• Place mechanical watches on a flat surface when winding, do not leave the crown pulled out.