G-Shock’s Best-Selling Square 5600 Wave Dive Watch: Carbon Fiber Resin & 4 Training Modes-Under $1,000?
Casio has expanded its G-SHOCK 5600 series with the release of the GBX-100TT, a specialized timepiece designed for surfers that incorporates carbon-fiber reinforced resin and four distinct training modes. The watch, which is priced under 10,000 New Taiwan Dollars, integrates Bluetooth connectivity to provide tide data and surf-related tracking functionality, according to reports from the Liberty Times.
Design and Material Specifications
The GBX-100TT utilizes a carbon-core guard structure, a design choice aimed at increasing durability while maintaining the lightweight profile associated with the 5600 line. Casio engineers selected a reinforced resin for the bezel and band to withstand the corrosive nature of saltwater environments. The watch face features a high-definition Memory in Pixel (MIP) LCD, which the manufacturer states is designed for improved visibility in direct sunlight, a feature critical for outdoor maritime activities.

Surfing and Training Functionality
Beyond its standard timekeeping capabilities, the watch provides specialized data for water sports. Users can access a dedicated tide graph and moon phase display, which are synchronized through the G-SHOCK Move smartphone application. The application allows users to select from approximately 3,300 surf spots worldwide to receive localized tide information.
The device includes an integrated sensor suite capable of tracking four primary training metrics:
- Distance traveled
- Pace and speed
- Calorie consumption
- Step count
These metrics are analyzed through the linked mobile application, which records historical performance data for the user.
Market Positioning and Comparison
The 5600 series remains the highest-selling line in the G-SHOCK catalog, historically known for its minimalist, square-shaped aesthetic. While traditional 5600 models typically focus on basic durability and solar charging, the GBX-100TT shifts the product focus toward data-driven athletic performance.
This model competes in the sub-10,000 TWD category, positioning it as a mid-tier option for consumers who require specific aquatic functionality without the higher price points of the G-SHOCK G-LIDE premium professional series. The inclusion of Bluetooth-enabled training modes represents a departure from the series’ purely recreational heritage, aligning the product with the current market trend of integrating "smart" health and fitness tracking into ruggedized consumer hardware.
Casio has not yet released the specific global rollout schedule for the GBX-100TT beyond the initial regional availability, leaving the timeline for expansion into additional markets subject to internal distribution decisions.