The new black and gold G-STEEL series includes the GSTB100GB1A9, GSTB400GB1A9, and GSTB500BD1A9.
For unknown reasons, none of the five G-Shock G-STEEL GST-B500 launch models were released in the United States, and the new black and gold GSTB500BD1A9 (left, $380) is the first GST-B500 model to be released there. The U.S. is also getting the larger GSTB100GB1A9 (middle, $420) with full analog display and the GSTB400GB1A9 (right, $390), which are also black and gold G-STEEL models. All three models feature Tough Solar power and Bluetooth smartphone link.
The GST-B500 is the thinnest G-STEEL model to date. The clean and simple dial layout is similar to the 2100 line. The GST-B500 is a slightly more affordable alternative to the GM-B2100 for those who prefer a round bezel, but it does not have a stainless steel center case like the full metal GM-B2100.
G-Shock GSTB100GB1A9: With gold ion plated bezel and black resin band. 58.1 × 53.8 × 14.1 mm, 101 grams.
Buy GSTB100GB1A9:
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List Price: $420 Series: GST-B100 Size: 58.1 × 53.8 × 14.1 mm Weight: 101 grams
Structure: resin case, stainless steel bezel, resin band, mineral glass, screw-lock crown, Neobrite
Protection: Shock Resistance, 200-meter Water Resistance Power: Tough Solar
Features: Bluetooth smartphone link, dual time (home city time swapping), 1-second stopwatch (23:59’59 max, split time), countdown timer (24 hours, settable in minutes and hours), daily alarm, LED light with afterglow, full auto-calendar, date display and day indicator
Unlike the other two models, the GSTB100GB1A9 is fully analog and has three analog hands but is thicker and wears larger.
G-Shock GSTB400GB1A9: With gold ion plated bezel and black resin band. 46.6 × 49.6 × 12.9 mm, 81 grams.
Buy GSTB400GB1A9:
Casio Amazon Reeds
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List Price: $390 Series: GST-B400 Size: 46.6 × 49.6 × 12.9 mm Weight: 80 grams
Structure: Carbon Core Guard, resin case, stainless steel bezel, resin band, mineral glass, Neobrite
Protection: Shock Resistance, 200-meter Water Resistance Power: Tough Solar
Features: Bluetooth smartphone link, world time (38 time zones, 38 cities + UTC, DST on/off, auto DST, home/world time city swapping), stopwatch (24 hour, 1/100-second first 60 minutes, 1-second after 60 minutes, elapsed time, lap/split time), countdown timer (60 minutes, settable in minutes and seconds), 5 daily alarms, hourly time signal, dual LED light with 1.5 or 3-second afterglow, full auto-calendar, button tone on/off, hand shift feature, 12/24-hour format, date/month display adjustment, day of week language setting (6)
The GSTB400GB1A9 is a slimmer G-STEEL model and is relatively light when paired with the resin band.
G-Shock GSTB500BD1A9: With black ion plated bezel and stainless steel band.
Buy GSTB500BD1A9:
Casio Amazon
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List Price: $380 Series: GST-B500 Size: 46.6 × 48.9 × 12.8 mm Weight: 143 grams
Structure: Carbon Core Guard, resin case, stainless steel bezel, stainless steel band, mineral glass, Neobrite
Protection: Shock Resistance, 200-meter Water Resistance Power: Tough Solar
Features: Bluetooth smartphone link, world time (38 time zones, 38 cities + UTC, DST on/off, auto DST, home/world time city swapping), stopwatch (24 hour, 1/100-second first 60 minutes, 1-second after 60 minutes, elapsed time, lap/split time), countdown timer (60 minutes, settable in minutes and seconds), 5 daily alarms, hourly time signal, dual LED light with 1.5 or 3-second afterglow, full auto-calendar, button tone on/off, hand shift feature, 12/24-hour format, date/month display adjustment, day of week language setting (6)
As part of the recent GST-B500 family, the GSTB500BD1A9 is the slimmest G-STEEL watch, but it is heavier than the other two resin-band models when paired with the stainless steel band.
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