40th Anniversary DW6640RE-1
G-Shock 40th Anniversary Quartz Watch
Case size (L× W× H)
53.2 × 50 × 18.7 mm
Weight
71 g
Case and bezel material
Bio-based resin
Band
Bio-based resin band
Construction
Shock Resistant
Water resistance
200-meter water resistance
Power supply and battery life
Approx. battery life: 5 years on CR2016
Glass
Mineral Glass
Compatible band size
145 to 205 mm
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, countdown timer time up alarm
Light
LED backlight (Super Illuminator) Afterglow
Light color
LED:White
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
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Shipping calculated at checkout.