Casio G-Shock Full Metal Black Dial - GMCB2100D-1A

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Introducing the full-metal chronograph addition to the continually evolving 2100 line
of timepieces which inherit the legacy of the first-ever G-SHOCK, the DW5000C. 

We take it way back with the octagonal bezel and dimpled band design of the original
from 1983, but all done in metal with stainless-steel case, bezel, and band. 

Buffering components made of fine resin are installed between the bezel and the case
for a shock-resistant structure with a full-metal exterior. The bezel — formed three-
dimensionally in a time-consuming forging, cutting, and polishing process — is finished
beautifully with a circular hairline treatment on the top surface and mirror polish on
the slopes. 

The delicate molding and vapor deposition of Casio ultra-precision processing
technologies add sophistication and quality to the indexes and inset dial rings. 

The screw-lock crown is designed in the same octagonal shape as the bezel for
a more compact case with no sacrifice in outstanding G-SHOCK shock resistance. 

High-density mounting keeps the module slim, while still providing the advanced
functions you love in a compact profile and comfortable fit. 

Pairs with a smartphone via Bluetooth®. Simply tap into the dedicated app for
precision timekeeping that keeps you on track. With Tough Solar, a high-brightness
LED light, and a range of other convenient functions, this is a timepiece that delivers
both superior style and practical utility.

Basic Information
Case size (L× W× H): 51.3 × 46.3 × 12.4 mm
Weight: 171 g
Case and bezel material: Stainless steel
Band: Stainless Steel Band
One-touch 3-fold Clasp
Construction: Shock Resistant
Water resistance: 200-meters 
Time adjustment
Bluetooth: Connects to a smartphone and automatically adjusts the time
Power supply and battery life
Tough Solar (Solar powered)

Smartphone Link/App Connectivity Features 
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
Flight log
Phone finder

Exterior 
Glass: Mineral Glass
Crown: Screw Lock Crown
Compatible band size: 150 to 205 mm
Other: Neobrite

Watch Features 
World time
Dual time (Home City time swapping)
Stopwatch
1-second stopwatch
Measuring capacity: 23:59'59.
Measuring modes: Elapsed time, split time
Timer
Countdown timer
Measuring unit: 1 second
Countdown range: 24 hours
Countdown start time setting range: 1 minute to 24 hours 
(1-minute increments and 1-hour increments)
Alarm/hourly time signal
Daily alarm
Light
LED light (Super Illuminator)
Afterglow
Light color
LED:White
Calendar
Full auto-calendar (to year 2099)
Energy saving feature
Power Saving (hands stop to save power when the watch is left in the dark)
Battery display/alert
Battery level indicator
Run time
Approx. battery operating time:
5 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
Accuracy: ±15 seconds per month (with no mobile link function)
Other features
Regular timekeeping:
Analog: 3 hands (hour, minute (hand moves every 10 seconds), second),
3 dials (mode and battery, dual time/stopwatch/countdown timer/alarm
hour and minute, day)
Day indicator
Regular timekeeping:
Analog: 3 hands (hour, minute (hand moves every 10 seconds), second), 3 dials 
(dual time hour and minute, dual time 24-hour, day)