Casio G-SHOCK GM-5640GEM-1DR Watch -40th Anniversary

Chart your own course with a G-SHOCK 40th Anniversary Adventurer’s Stone limited-edition timepiece. Join us in celebrating the G-SHOCK 40th by choosing one of these spectacular metal-clad watches, which are inspired by the stones adventurers have used to navigate since ancient times.

The special colors of the minerals ancient seafarers used to find their way are reproduced in these watch designs with forging, ion plating, and masking processes, giving each metal bezel a one-of-a-kind look. The bands are made with colored or translucent resin and are uniquely textured with hot-stamping and Garal color molding techniques.

These limited-edition timepieces celebrate the G-SHOCK 40th through and through: the phrase “SINCE 1983” appears on the dial; the Eric Haze-designed 40th logo is engraved on the case back, and there are four stars for 40 on the band loop.

• Stopwatch

  1/100-second stopwatch Measuring capacity: 00'00''00~59'59''99 (for the first 60 minutes) 1:00'00~23:59'59 (after 60 minutes) Measuring unit: 1/100 second (for the first 60 minutes) 1 second (after 60 minutes) 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 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments) Other: Auto-repeat

• Alarm/hourly time signal

  Hourly time signal
  Multi-function alarm

• Flash alert feature

  Flash alert Flashes with buzzer that sounds for alarms, hourly time signals

• Light

  Electro-luminescent backlight Afterglow

• Light color

  EL:Blue Green

• Calendar

  Full auto-calendar (to year 2099)

• Accuracy

  Accuracy: ±15 seconds per month

• Other features

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

• Case and bezel material

  Resin / Stainless steel

• Band

  Resin Band

• Construction

  Shock Resistant

• Water resistance

  200-meter water resistance