Dive into the celebration of the 30th anniversary of the G-SHOCK Master of G Frogman family of full-fledged diver’s watches with ISO-standard 200-meter water resistance.

More than just a revival of this original design, the GW8230B represents a new evolution — it is the first Frogman to use Earth-friendly biomass plastics in the bezel and band. Add Tough Solar powered by a solar panel designed especially to reproduce the shape of the DW8200 dial, and you have a special diver’s watch that goes the extra mile to reduce environmental impact. The back of the titanium case and the LED backlight both display a special Frogman 30th-anniversary design.

• Case size (L× W× H): 52 × 50.3 × 18 mm
  
• Weight: 84 g
  
• Resin Band
  
• Shock Resistant
  
• ISO 200 meters Water Resistance
  
• Tough Solar (Solar powered)
  
• Mineral Glass
  
• Screw Lock Back
  
• Black ion-plated case
  
• Compatible band size: 150 to 220 mm
  
• Dive time and surface interval measurement function
  
• Dive time: 1-second increments, up to 23:59'59
  
• Surface interval: 1-minute increments, up to 47:59'59
  
• Memory capacity: One set of 10 data (dive start date and time, dive time)
  
• World time - 31 time zones (48 cities + coordinated universal time), city code display, daylight saving on/off
  
• Moon data (moon age of the specific date, moon phase graph) - Tide graph (tide level for specific date and time)
  
• 1/100-second stopwatch - Measuring capacity: 23:59'59.99'' - Measuring modes: Elapsed time, split time, 1st-2nd place times
  
• Countdown timer - Measuring unit: 1 second - Input range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
  
• 5 daily alarms (with 1 snooze alarm)
  
• Hourly time signal
  
• LED backlight (Super Illuminator)
  
• Full auto LED light, selectable illumination duration (1.5 seconds or 3 seconds), afterglow
  
• LED: White
  
• Full auto-calendar (to the year 2099)
  
• Button operation tone on/off
  
• Power Saving (Turns off the display when the watch is left in the dark)
  
• Battery power indicator
  
• Approx. battery operating time:
  
• 14 months on rechargeable battery (operation period with normal use without exposure to light after charge)
  
• 36 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
  
• 12/24-hour format
  
• Regular timekeeping: Hour, minute, second, pm, month, date, day