The G Shock Gulfman G9100-1 has many features that you will love in this watch.  Shock, Water and rust resistant, Tide graph, Moon Data and  World Time just to name a few.

A great watch for those fisherman who use the tide and moon data information when setting out on your fishing trips.  You wont leave home without your G Shock Gulfman G9100-1.

Approx. battery life: 7 years

  • Shock Resistant
  • Rust Resistant
  • 200M Water Resistant
  • Auto Dual EL Backlights with Afterglow
  • Tide Graph
  • Moon Data (moon age of the input data, moon graph)
  • World Time
    29 times zones (48 cities), city code display, daylight saving on/off
  • 3 Multi-function Alarms (1 with snooze)
  • Countdown Timer
    Measuring unit: 1 second
    Countdown range: 1 minute to 24 hours
    Auto Repeat, timeup alarm, progress beeper
  • 1/100 second stopwatch
    Measuring capacity: 24:59’59.99″
    Measuring modes: Elapsed time, split time, 1st-2nd place times
  • Hourly Time Signal
  • Flash Alert (stopwatch auto-start, countdown alarm, alarms, hourly time signal)
  • Button Tone Operation On/Off
  • Auto Calendar (pre-programmed until the year 2099)
  • 12/24 Hour Formats
  • Accuracy: +/-15 seconds per month (with no signal calibration)
  • Battery: CR2025
  • Approx. battery life: 7 Years
  • Module 3088
  • Size of case/total weight
    G9100 51.0 x 46.0 x 16.4mm / 53g