Casio Computer Co., Ltd. just released the GST-B300, the latest addition to the G-STEEL line of G-SHOCK shock-resistant watches. The GST-B300 is the first G-STEEL watch with a front button, which adopts a new Carbon Core Guard structure that delivers superior shock resistance by leveraging the lightness and outstanding rigidity of carbon fiber.
According to Casio, to build this watch with front button design, a new Carbon Core Guard structure was developed which protects the module with a carbon case. Highly durable carbon fiber-reinforced resin is added not only to the center case, but also to the front and side button guards, providing even stronger resistance to shocks from above or below, or from any side.
There is a battery indicator at the 6 o’clock position. The design was inspired to evoke a brake disk, shows the remaining battery power by an arrow pointer and a curved red bar, providing visually interesting ways to check the battery.
Not only that, this watch can perform automatic time adjustment via Bluetooth when paired with a dedicated smartphone app, the watch features world time setting for over 300 cities as well as various alarm and countdowin timer settings, all easy to use. It is also equipped with other practical functions such as the Tough Solar, solar charging system developed by Casio, and a high-luminosity full auto double LED light.
However, there is no specific mention of availability and pricing of this watch by Casio as of the time of writing.
Specification for GST-B300
Construction : Shock-resistant
Water Resistance : 200 meters
Communication Standard : Bluetooth® low energy
Signal Range : Up to 2 meters (may differ depending on surrounding conditions)
World Time : 39 time zones*1 (39 cities + coordinated universal time), daylight saving on/off, auto summer time (DST) switching, home time/world time swapping (*1 May be updated when connected to a smartphone.)
Stopwatch : Measuring capacity: 00’00″000 to 59’59″999 (for the first 60 minutes), 1:00’00″0 to 23:59’59″9 (after 60 minutes); measuring unit: 1/1000 second (for the first 60 minutes), 1/10 second (after 60 minutes); measuring modes: elapsed time, split time
Countdown Timer : Measuring unit: 1/10 second (maximum 24 hours)
Alarm : 5 multi-function alarms (with daily, 1 time, schedule); hourly time signal
Other Features : Mobile Link functions (world time: over 300 cities, automatic time adjustment, easy watch setting, phone finder); hand shift feature; 12/24-hour format; button operation tone on/off; full auto-calendar; battery level indicator; full auto double LED light (Super Illuminator with afterglow: 1.5/3.0 seconds)
Power Source : Tough Solar power system (solar-charging system)
Continuous Operation : About 19 months with the power-saving function*2 ON after full charge (*2 Power-saving after a certain period in a dark location)
Size of Case : 51.0 × 50.0 × 15.5 mm
Total Weight : Approx. 82g