Casio G-Shock Men's Watch GW-B5600-2 Digital Tough Solar (Solar powered) Mobile link (Wireless linking using Bluetooth®)

Features

These GW-B5600 Connected Engine models feature the distinctive square design of the 5000/5600 Series, which still maintains the same basic form as the original DW-5000C.
Function-wise, these models are designed for outstanding timekeeping accuracy using Bluetooth® data communication and Multi Band 6, which supports automatic time setting adjustment based on one of six time calibration signals around the globe. Time information also can be acquired from an internet time server using the G-SHOCK Connected*1 app running on a smartphone.
Other functions include Tough Solar in combination with CASIO original power saving technology that delivers a stable supply of power, high-brightness Full Auto LED illumination, World Time, and more. A selection of six languages for the day of the week indicator*2 provides localization at the press of a button.
Use of an advanced engine makes it possible to achieve high-density component mounting without affecting the size of the finished timepiece. This and much more creates a modern timepiece that delivers the perfect blend of looks and performance.

*1 Smartphone app for use with G-SHOCK Smartphone Link models. It establishes a Bluetooth connection with the watch's Connected Engine for automatic time correction, configuration of World Time and other settings, and more. It also makes it possible to keep updated with the latest time zone and summer time information.
A Tough Solar power system generates enough energy to ensure uninterrupted operation of power-hungry functions.
*2 Day of the week languages: English, Spanish, French, German, Italian, Russian

Specifications

• Case / bezel material: Resin
• Resin Band
• Shock Resistant
• Mineral Glass
• 200-meter water resistance
• 
• Tough Solar (Solar powered)
• LED backlight (Super illuminator)
  Full auto LED light, selectable illumination duration (2 seconds or 4 seconds), afterglow
• 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
• 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
• Mobile link (Wireless linking using Bluetooth®)
• 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
• 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
• 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)
• 5 daily alarms (with 1 snooze alarm)
• Hourly time signal
• Low battery alert
• Power Saving (display goes blank to save power when the watch is left in the dark)
• Full auto-calendar (to year 2099)
• 12/24-hour format
• Button operation tone on/off
• Date/month display swapping
• Day display (days of the week selectable in six languages)
• Regular timekeeping: Hour, minute, second, pm, month, date, day
• Accuracy: ±15 seconds per month (with no signal calibration and mobile link function)
• 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)

Size / Total weight 

• Size of case : 48.9×42.8×13.4mm
• Total weight : 53g