Introducing the GSTB300B-1A, the latest in the new rugged style of G-STEEL models that feature Carbon Core Guard structure. The new GSTB300s adopt tough G-SHOCK styling with a disk indicator at 6 o’clock that shows the current mode and charge level, and a front button that completes the overall rugged look. The disk, a round graphic digital display between 1 and 2 o'clock, and a digital display as 12 o'clock add to both functionality and looks. The new GSTB300B-1A model comes in a black case and resin band accompanied with striking Gold IP accented button, screws and buckle.
Shock Resistant
Carbon Core Guard structure
Mineral Glass
Neobrite
200-meter water resistance
Case / bezel material: Carbon / Stainless steel
Resin Band
Double LED light
LED light for the face (Full auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
LED backlight for the digital display (Full auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
Tough Solar (Solar powered)
Mobile link (Wireless linking using Bluetooth®)
World time
39 time zones* (39 cities + coordinated universal time), daylight saving on/off, auto summer time (DST) switching, Home city/World time city swapping
*May be updated when connected to a smartphone.
1/1000-second stopwatch
Measuring capacity:
00'00''000~59'59''999 (for the first 60 minutes)
1:00'00''0~23:59'59''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
Countdown range: 24 hours
Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments)
5 multi-function alarms (with daily, 1 time, schedule)
Hourly time signal
Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)
Battery level indicator
Full auto-calendar (to year 2099)
12/24-hour format
Button operation tone on/off
Power Saving (display goes blank and hands stop to save power when the watch is left in the dark)
Regular timekeeping
Analog: 3 hands (hour, minute (hand moves every 10 seconds), second),
Digital: Hour, minute, second, pm, month, date, day
Accuracy: ±15 seconds per month (with no mobile link function)
Approx. battery operating time:
6 months on rechargeable battery (operation period with normal use without exposure to light after charge)
20 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
LED:White
Module: 5631
Size of case: 51×50×14.5mm
Total weight: 91g
Watches.com will cover the cost for Standard International Mail* (orders over $249+) and Standard Domestic Mail (orders over $100+). Not all countries are eligible for free international shipping. Upgraded shipping options (estimated transit times and rates) will be quoted during checkout.
Watches.com has been shipping worldwide since 1999 and we ship internationally daily. Most orders are processed and shipped out by 5pm (MST) Monday through Friday on regular business days. Payment/fraud verification is typically instantaneous, but in some instances may take up to 48 hours. Orders placed/received after 12:00pm (MST) will be processed the next business day. Please be aware that UPS does not deliver on weekends.
Because customs fees vary by country, we do not collect duties during checkout. If duties are due, your customs agency will let you know when the package arrives in your country. It is your responsibility to pay these fees to your country.
Once items are shipped, liability is covered by the terms of the carrier. We will ship to the address specified by the customer. If you did not provide us with an accurate address, neither Watches.com, nor the shipping carrier can be held responsible for the loss of an item. Please double check your shipping address. Any shipping damage must be reported to Watches.com within 48 hours of delivery, otherwise it is ineligible for any insurance or refund claims.
Note: Per Casio's policy, Casio and G-Shock watches are not eligible for International Shipping. Any international order containing a Casio or G-Shock watch will be cancelled and all monies refunded.
We could all use some extra time. If your new, unworn item is not 100% to your satisfaction, you have 30 days from the original ship date to return it. To be eligible for a return, your item must be unused, unworn and in the same condition that you received it (including any protective stickers still on it). It must also be in the original packaging. More details can be found on our Returns page. **Unfortunately Mystery watches are final sale and only eligible for return for store credit; a small restocking fee applies to these returns.
