Casio G-Shock GA-B001-4A Carbon Core Guard (Bluetooth) Men's Watch

Brand: Casio G-Shock, Series: GA-B001 Series, Model: GA-B001-4ADR, Gender: Men's, Case size: 42.5mm, Lug to Lug: 46mm, Case Thickness: 13.8mm, Dial Color: Black, Case / bezel Material: Carbon / Resin　, Band Material: Resin Band, Band Color: Red, Clasp: Tang, Construction: Shock Resistant, Carbon Core Guard structure, Approx. battery life: 2 years on SR726W X 2, Bezel: Fixed, Bezel Color: Red, Bezel Material: Resin, Weight: 51g, Water Resistant: 200 Meters, Warranty: 2 Years, 

Exterior:
Glass: Mineral Glass
Other: Neobrite

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
App information
Time & place
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

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