In 1983 Casio released the first G-Shock  watch. At a time when thin, delicate watches were the fashion, the G-Shock was a tough, rugged looking watch. The company marketed the watch as being able to withstand a fall from the top of a building and still operate perfectly. The G-Shock was ahead of its time, and though it did not take off immediately, within a decade the style skyrocketed to popularity. Today the G-Shock has become Casio's most recognizable watch.

• The CASIO G-SHOCK has long been known as the watch that pushes the limits of shock resistance and water resistance. Now these new models test new limits for battery life. As well as the distinctive G-SHOCK design and powerful functions plus a design that enables an extended battery life (approx. 10 years). Functions include e-DATA MEMORY for storing URL's and e-mail addresses, 27-city World Time and multi alarms.
• Features:
• 200 Metre Water Resistant.
• 1/100 second stopwatch.
• Measuring capacity: 23:59'59.99".
• Measuring modes: Elapsed time, split times, 1st-2nd  place times.
• 12 / 24 hour formats.
• Accuracy: ± 15 seconds per month.
• Auto-calendar (to year 2039)
• Countdown timer.
• Input range: 1 minute to 24 hours.
• Unit: 1 second.
• Electro-luminescent backlight.
• Auto-light switch, afterglow.
• Hourly time signals.
• Regular timekeeping.
• Hour, minutes, seconds, pm, month, date.
• Shock resistant.
• World time 29 time zones (27 cities), city code display, daylight saving on/off.
•  Approx. battery life: 10 years on CR2025
•  e-Data Memory - Memory capacity: up to 40 records for   internet access codes and other data (when there are 7   characters per record), actual number of records depends on the number of characters per record.
•  Other: Password Shock Resistant (G-SHOCK)
• Multi-alarms - 5 independent multi alarms (4 one-time alarms and 1 snooze alarm) Others:Schedule text (8 characters); pre-alarms
• Instruction Guide.
• Manufacturers Guarantee.