Specifications
Basic Information
Case size (L× W× H): 49.4 × 43.2 × 12.9 mm
Weight: 114 g
Case and bezel material: Case/bezel material: Titanium
Band: Titanium Band, Solid Band, Tight-lock, 1-press, 3-fold Clasp
Construction: Shock Resistant
Water resistance: 200-meter water resistance
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 + user-added point, Time & Place, Reminder, Watch status display, Self-check, Phone finder
Exterior
Glass: Sapphire crystal with a glare-resistant coating
Backplate: Screw Lock Back
Surface treatment: Titanium Carbide Coating
Watch Features
World time
5 World time 39 time zones (39 cities +coordinated universal time), daylight saving on/off, Home city/World time city swapping, auto summer time (DST) switching
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, split time, 1st-2nd place times
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
5 daily alarms
Hourly time signal
Light
LED backlight (Super illuminator)
Full auto LED light, selectable illumination duration (2 seconds or 4 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
Low battery alert
Run time
Approx. battery operating time:
10 months on rechargeable battery (operation period with normal use without exposure to light after charge)
22 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 signal calibration and mobile link function)
Other features
12/24-hour format
Date/month display swapping
Day display (days of the week selectable in six languages)
Regular timekeeping:
Hour, minute, second, pm, month, date, day
Time adjustment details
Time calibration signal reception
Auto receives up to six* times a day (remaining auto receives canceled as soon as one is successful)
*5 times a day for the Chinese calibration signal
Manual receive
The latest signal reception results
Time Calibration Signals
Station name: DCF77 (Mainflingen, Germany)
Frequency: 77.5 kHz
Station name: MSF (Anthorn, England)
Frequency: 60.0 kHz
Station name: WWVB (Fort Collins, United States)
Frequency: 60.0 kHz
Station name: JJY (Fukushima, Fukuoka/Saga, Japan)
Frequency: 40.0 kHz (Fukushima) / 60.0 kHz (Fukuoka/Saga)
Station name: BPC (Shangqiu City, Henan Province, China)
Frequency: 68.5 kHz
30天保障 
