Casio G-Shock Urban Utility Solar (Bluetooth) Men's Watch | GA-B2100LUU-5A

The Casio G-Shock GA-B2100LUU-5A Urban Utility Solar Bluetooth Men’s Watch is a rugged yet refined timepiece built for modern urban adventurers. Featuring the iconic octagonal design of the 2100 Series, this model sports a 45.4mm carbon-reinforced case with a slim 11.9mm profile and a lightweight build of just 52g. Its Carbon Core Guard structure ensures superior shock resistance, while the 200-meter water resistance makes it ideal for active lifestyles. The bold black analog-digital dial contrasts sharply with the grey resin band and case, giving the watch a sleek, tactical aesthetic. A double white LED light provides strong illumination in low-light conditions, enhancing the visibility of its dual display. The scratch-resistant mineral crystal ensures long-lasting clarity. Powered by Tough Solar technology, the GA-B2100LUU-5A harnesses light to maintain its charge, while Bluetooth connectivity enables automatic time sync and smart features via the CASIO WATCHES app. Backed by reliable Japanese quartz movement, it delivers consistent performance and hands-free convenience. Stylish yet tough, this watch perfectly balances form and function, making it a versatile companion whether you're navigating the city or the outdoors. Backed by a 2-year Watch Zone warranty, it’s a dependable choice for those who demand utility with urban edge. UPC: 4549526393358

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

Watch Features:

World time
38 time zones (38 cities + coordinated universal time), city code display, 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