Casio G-Shock Full Metal 2100 Series Gold - GMB2100GD-9A

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

Luxe full-metal construction with a screw-back case, bezel, and band crafted in stainless steel creates a streamlined, minimalist design, while protecting the module from impact when dropped. High-density mounting keeps the analog-digital combination module slim, while still providing the advanced functions you love in a compact profile and comfortable fit.

We take it way back with the octagonal bezel and dimpled band design of the original from 1983, all done in metal. The bezel and band are coated with yellow gold ion plating. The stainless steel bezel — formed three-dimensionally through 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.

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 on style and practical utility.

Basic Information
Case Size: 49.8 × 44.4 × 12.8 mm
Weight: 165 g
Case and bezel material: Stainless steel
Band: Stainless Steel
Clasp: 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
Time & place
Reminder
Phone finder

Exterior 
Glass: Mineral Glass
Back plate: Screw Lock Back
Surface treatment
Gold ion plated case & bracelet
Compatible band size: 150 to 205 mm

Watch Features 
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
Accuracy: ±15 seconds per month (with no mobile link function)

Other features
Hand shift feature (Hands move out of the way to provide an unobstructed 
view of digital display contents.)
12/24-hour format
Date/month display swapping
Day display (days of the week selectable in six languages)
Regular timekeeping:
Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 
1 dial (battery level, mode)
Digital: Hour, minute, second, pm, month, date, day

GMB2100GD-9A