The band and bezel of every model in the line are made with bio-based resins. The 40th anniversary logo designed by Eric Haze is engraved on the case back, and also appears in silhouette when the light button is pressed on the DWE5657 and DW6640. With four stars for 40 engraved on the band loop and other special details, these limited-edition timepieces are heirs to G-SHOCK history.

• Case size (L W H)

  48.5 45.4 11.8 mm

• Weight

  57 g

• Case and bezel material

  Case / bezel material: Carbon / Bio-based resin

• Band

  Bio-based resin band

• Construction

  Shock Resistant
  Carbon Core Guard structure

• Water resistance

  200-meter water resistance

• Power supply and battery life

  Approx. battery life: 3 years on SR726W X 2

• Glass

  Mineral Glass

• Compatible band size

  145 to 215 mm

• Other

  Neobrite

• World time

  World time 31 time zones (48 cities coordinated universal time), daylight saving on/off

• 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)

• Alarm/hourly time signal

  5 daily alarms
  Hourly time signal

• Light

  Double LED light LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow) LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)

• Light color

  LED:White

• Calendar

  Full auto-calendar (to year 2099)

• Mute feature

  Button operation tone on/off

• Accuracy

  Accuracy: 15 seconds per month

• Other features

  12/24-hour format
  Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)
  Regular timekeeping: Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day) Digital: Hour, minute, second, pm, month, date
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