Diving mode
Dive time: 1 second increments, up to 1:59'59
Surface time measurement: up to 24 hours
Log data: up to 30 records
World time
Dual time
27 time zones, Home time swapping, auto summer time (DST) switching
Stopwatch
1-second stopwatch
Measuring capacity: 23:59'59
Timer
Countdown timer
Measuring unit: 1 second
Countdown range: 24 hours
Countdown start time setting range: 1 minute to 24 hours (1-second increments)
Alarm/hourly time signal
Daily alarm
LED light (Super Illuminator)
Afterglow
LED:White
Calendar
Full auto-calendar (to year 2099)
Hand home position correction feature
The auto hand home position correction
Energy saving feature
Power Saving (hands stop to save power when the watch is left in the dark)
Run time
Approx. battery operating time:
5 months on rechargeable battery (operation period with normal use without exposure to light after charge)
30 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
Accuracy: ±15 seconds per month (with no signal calibration and mobile link function)
Hand shift feature (Hands move out of the way to provide an unobstructed view of indial)
Regular timekeeping:
Analog: 3 hands (hour, minute (hand moves every 5 seconds), second), 3 dials (dual time hour and minute, dual time 24 hour, day)
Date display
Day indicator
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
Time calibration signal reception
Auto receive 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
Spherical Glass
Sapphire crystal with glare-resistant coating
Screw Lock Crown
Blue ion plated bezel
Neobrite
Mobile link (Wireless linking using Bluetooth®)
Case / bezel material: Resin / Stainless steel
Carbon monocoque case
Stainless Steel / Resin Composite Band
Double-lock, 1-press, 3-fold Clasp
Shock Resistant
Magnetic Resistant
Carbon Core Guard structure
ISO 200 meters Water Resistance
Radio-controlled Watch; Multi band 6
Tough Solar (Solar powered)
Case size (L× W× H)
56.7 × 51.7 × 19.7 mm
Weight: 145 g

G-Shock Mens 200m Carbon Bluetooth Frogman - GWF-A1000-1ASK