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At A Glance

G-Shock, the watch that has long supported the world's top surfers and action sports enthusiasts, introduces a new model with a theme based on the Surfrider Foundation (S.R.F), an organization established by the people who love surfing. The deep blue coloring of the lustrous materials recalls the beautiful ocean. Turning on the display's backlight causes the S.R.F logo, which has a wavy appearance, to appear on the display, and the text "Surfrider Foundation" is imprinted on the buckle and band. Everything about this new model is designed to recall the beautiful ocean, which the S.R.F is committed to protecting.




  • Band Type:  Resin
  • Color:  Blue
  • Dial Code:  Digital

Technical Specs

  • Tough Solar Power
  • Shock Resistant
  • 200M Water Resistant
  • Full Auto EL Backlight with Afterglow
  • World Time
    29 time zones (48 cities + UTC), city code display, daylight saving on/off
    4 Daily Alarms & 1 Snooze Alarm
  • Hourly Time Signal
  • Countdown Timer
    Measuring unit: 1 second
    Input range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
    1/100 Second Stopwatch
    Measuring capacity: 23:59'59.99"
    Measuring modes: Elapsed time, split time, 1st-2nd place times
  • Button operation tone on/off
  • Auto Calendar (pre-programmed until the year 2099)
  • 12/24 Hour Formats
  • Accuracy: +/-15 seconds per month
  • Storage Battery: Solar Rechargeable Battery
  • Battery Power Indicator
  • Power Saving Function
  • Approx. battery life: 11 months on full charge (without further exposure to light)
  • Module 3160

Size of case/total weight
G5500SRF 45.4 x 46.2 x 13.6mm / 54.9g