As an upgrade to it's predecessors, the new GWM500 add the ability to connect with the radio transmitter in China to update the watchs' time & date in addition to adding an additional 18 cities added to the world time mode, for a total of 48-cities. The watchs' time memo function has been replaced with a countdown timer. Black resin band digital watch with neutral face.

Basic Information

• Case size (L× W× H)

  56.8 × 46 × 16.6 mm

• Weight

  67 g

• Case and bezel material

  Resin / Stainless steel

• Band

  Resin Band

• Construction

  Shock Resistant

• Water resistance

  200-meter water resistance

• Time adjustment

  Radio-controlled Watch; Multi band 6

• Power supply and battery life

  Tough Solar (Solar powered)

Exterior

• Glass

  Mineral Glass

Watch Features

• World time

  World time
  31 time zones (48 cities coordinated universal time), city code display, daylight saving on/off

• Stopwatch

  1/100-second stopwatch
  Measuring capacity: 23:59'59.99''
  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 minutes to 24 hours (1-minute increments and 1-hour increments)

• Alarm/hourly time signal

  Daily alarms
  5 independent daily alarms (4 one-time alarms and 1 snooze alarm)
  Hourly time signal

• Light

  Electro-luminescent backlight Full auto EL light, afterglow

• Light color

  EL:Blue Green

• Calendar

  Full auto-calendar (to year 2099)

• Mute feature

  Button operation tone on/off

• Energy saving feature

  Power Saving (Turns off the display when the watch is left in the dark)

• Battery display/alert

  Battery power indicator

• Run time

  Approx. battery operating time:
  9 months on rechargeable battery (operation period with normal use without exposure to light after full charge)
  33 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)

• Other features

  12/24-hour format
  Regular timekeeping: Hour, minute, second, pm, month, date, day

• Time adjustment details

  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