The Casio G-SHOCK G-STEEL GST-B400D-1ADR-S is a premium analog-digital watch that combines G-SHOCK's legendary toughness with a slim stainless steel design. Featuring a stainless steel bezel and bracelet, carbon core guard construction, Tough Solar charging, and Bluetooth® smartphone connectivity, it offers exceptional durability without compromising on style. With 200-meter water resistance, dual LED illumination, and advanced timekeeping features, it is ideal for business, travel, sports, and everyday wear. Official specifications are based on Casio's official product documentation.
Key Features
Shock Resistant
Carbon Core Guard structure
Tough Solar power
Bluetooth® smartphone connectivity
200-meter water resistance (20 Bar)
Stainless steel bezel and bracelet
Dual LED Super Illuminator
World Time (300+ cities via smartphone)
Hand Shift feature
Stopwatch
Countdown timer
5 daily alarms
Full auto-calendar
Phone Finder
Timekeeping
Displays:
Hour
Minute
Second
Date
Day
Analog and digital display
Automatic time adjustment via Bluetooth®
World Time
Dual Time
12/24-hour time formats
Full auto-calendar
High-accuracy quartz movement
Design & Materials
Carbon Core Guard resin case
Stainless steel bezel
Stainless steel bracelet
One-touch three-fold clasp
Mineral glass
Slim G-STEEL profile
Dual LED illumination
Shock-resistant construction
Comfortable stainless steel bracelet
Colors
Case: Black with Silver-tone
Bezel: Silver-tone Stainless Steel
Band: Stainless Steel
Dial: Black
Hour Markers: Silver-tone with luminous coating
Hands: Silver-tone with luminous coating
Note: The GST-B400D-1ADR-S is one of the slimmest models in the G-STEEL lineup, combining Tough Solar charging, Bluetooth® connectivity, Carbon Core Guard construction, and a full stainless steel exterior for a perfect balance of durability and refined style.
Power
Power Source: Tough Solar (Solar Charging)
Battery Type: Rechargeable solar battery
Power Saving Function: Yes
Water Resistance
200 meters (20 Bar)
Suitable for:
Daily hand washing
Showering
Swimming
Snorkeling
Recreational scuba diving
What's Included
Casio G-SHOCK G-STEEL GST-B400D-1ADR-S Watch
Original Casio Box
Instruction Manual
Warranty Card (provided by the authorized distributor)
