GMB2100BT-1A
A collection of full-metal descendants of the first-ever G-SHOCK — introducing the GM-B2100 with a black bezel highlighting their iconic form.
The striking two-tone black-on-silver color scheme projects G-SHOCK toughness in a model sure to suit your personal style.
The top bezel of the GM-B2100BT is treated to a hairline finish, exuding the premium elegance of sophisticated metal texture.
Indexes finished in silver-colored vapor deposition enhance visibility and add a beautiful contrast with the dial.
Crafted from stainless steel, the bezel undergoes meticulous processes of forging, cutting, and polishing to achieve an exquisite finish of depth and dimension.
To achieve the same original G-SHOCK shock-resistant structure in a full-metal timepiece, buffering components made of fine resin are inserted between the stainless-steel bezel and case.
And dimpling is applied to metal band pieces to reproduce the look of the very first G-SHOCK resin band design.
The stainless-steel case of the GM-B2100BT features the same screw-lock construction as the original to ensure a tight seal.
And the fact that the watch is crafted at Yamagata Casio, the “mother factory" where the first ever G-SHOCK was made, brings the whole design full circle. WATCH FEATURES
Case size (L× W× H)
49.8 × 44.4 × 12.8 mm
Weight
165 g
Case and bezel material
Stainless steel
Band
Solid stainless steel band
One-touch 3-fold Clasp
Construction
Shock Resistant
Water resistance
200-meter water resistance
Time adjustment
Bluetooth: Connects to a smartphone and automatically adjusts the time
Power supply and battery life
Tough Solar (Solar powered)
Smartphone Link feature
Mobile link (Wireless linking using Bluetooth®)
Apps
CASIO WATCHES
App connectivity feature
Auto time adjustment
Easy watch setting
Approximately 300 world time cities
Time & place
Reminder
Phone finder
Glass
Mineral Glass
Back plate
Screw Lock Back
Surface treatment
Black ion plated bezel
Compatible band size
150 to 205 mm
Other
Neobrite
World time
World time 38 time zones (38 cities coordinated universal time), city name display, daylight saving on/off, auto summer time (DST) switching, Home city/World time city swapping
Stopwatch
1/100-second stopwatch Measuring capacity: 00'00''00~59'59''99 (for the first 60 minutes) 1:00'00~23:59'59 (after 60 minutes) Measuring unit: 1/100 second (for the first 60 minutes) 1 second (after 60 minutes) Measuring modes: Elapsed time, lap/split time
Timer
Countdown timer Measuring unit: 1 second Countdown range: 60 minutes Countdown start time setting range: 1 second to 60 minutes (1-second increments and 1-minute increments)
Alarm/hourly time signal
5 daily alarms
Hourly time signal
Light
Double LED light LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
Light color
LED:White
Calendar
Full auto-calendar (to year 2099)
Mute feature
Button operation tone on/off
Energy saving feature
Power Saving (display goes blank to save power when the watch is left in the dark)
Battery display/alert
Battery level indicator
Run time
Approx. battery operating time: 7 months on rechargeable battery (operation period with normal use without exposure to light after charge) 18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
Accuracy
SINGL