DW-5600E
Encyclopedia
The Casio DW-5600E is a model of digital watch, manufactured by the Japanese firm Casio
Casio
is a multinational electronic devices manufacturing company founded in 1946, with its headquarters in Shibuya, Tokyo, Japan. Casio is best known for its electronic products, such as calculators, audio equipment, PDAs, cameras, musical instruments, and watches...

 and a member of Casio's G-Shock
G-Shock
G-Shock is a brand of watches manufactured by Casio, known for its resistance to shocks . They were, and continue to be, designed primarily for sports, military, and outdoor adventure oriented activity; for example, practically all G-Shocks have some kind of stopwatch feature, countdown timer,...

 product line. Casio introduced this model in 1996. It has 200m water resistance, one alarm
Alarm clock
An alarm clock is a clock that is designed to make a loud sound at a specific time. The primary use of these clocks is to awaken people from their night's sleep or short naps; they are sometimes used for other reminders as well. To stop the sound, a button or handle on the clock is pressed; but...

, a countdown timer
Timer
A timer is a specialized type of clock. A timer can be used to control the sequence of an event or process. Whereas a stopwatch counts upwards from zero for measuring elapsed time, a timer counts down from a specified time interval, like an hourglass.Timers can be mechanical, electromechanical,...

 and a stopwatch
Stopwatch
A stopwatch is a handheld timepiece designed to measure the amount of time elapsed from a particular time when activated to when the piece is deactivated. A large digital version of a stopwatch designed for viewing at a distance, as in a sports stadium, is called a stopclock.The timing functions...

. These features trigger an audible alarm.

This model replaces the older Casio DW-5600C and features Illuminator, an EL
Electroluminescence
Electroluminescence is an optical phenomenon and electrical phenomenon in which a material emits light in response to the passage of an electric current or to a strong electric field...

 backlight
Backlight
A backlight is a form of illumination used in liquid crystal displays . As LCDs do not produce light themselves , they need illumination to produce a visible image...

 with flash function. The dual-time function was deleted, but the current time is also displayed in countdown timer and stopwatch mode.

One of the major differences between this model and the original DW-5600C is the use of a polymer
Polymer
A polymer is a large molecule composed of repeating structural units. These subunits are typically connected by covalent chemical bonds...

 case material with a stainless steel
Stainless steel
In metallurgy, stainless steel, also known as inox steel or inox from French "inoxydable", is defined as a steel alloy with a minimum of 10.5 or 11% chromium content by mass....

 case back secured with four screws. The original design featured a stainless steel case and screw-down case back and is highly sought after by collectors.

It has been flight-qualified by NASA
NASA
The National Aeronautics and Space Administration is the agency of the United States government that is responsible for the nation's civilian space program and for aeronautics and aerospace research...

 for space missions.

Casio has updated the module, replacing the usual 1545 module with module number 3229. The new module just features an extended calendar, the 1545 calendar goes up to year 2039, while the 3229 calendar goes up to the year 2099.

Four subsequent iterations of this design have been released:
  • G-5600 Tough Solar
    Tough Solar
    Tough Solar is the name given by Casio to the solar powered battery charging system used in its G-Shock line of watches....

    .
  • GW-5600 Tough Solar
    Tough Solar
    Tough Solar is the name given by Casio to the solar powered battery charging system used in its G-Shock line of watches....

     and Wave Ceptor.
  • GW-M5600 Tough Solar
    Tough Solar
    Tough Solar is the name given by Casio to the solar powered battery charging system used in its G-Shock line of watches....

     and Multi-band 5 Wave Ceptor.
  • G-5600E Tough Solar
    Tough Solar
    Tough Solar is the name given by Casio to the solar powered battery charging system used in its G-Shock line of watches....

     - a variant of the GW-M5600 without Wave Ceptor(for sale in non-Wave Ceptor markets)
  • GW-5000 Tough Solar
    Tough Solar
    Tough Solar is the name given by Casio to the solar powered battery charging system used in its G-Shock line of watches....

    , Multi-band 6, Wave Ceptor and stainless steel screwback.

Features

  • Time display in 12-hour
    12-hour clock
    The 12-hour clock is a time conversion convention in which the 24 hours of the day are divided into two periods called ante meridiem and post meridiem...

     or 24-hour
    24-hour clock
    The 24-hour clock is a convention of time keeping in which the day runs from midnight to midnight and is divided into 24 hours, indicated by the hours passed since midnight, from 0 to 23. This system is the most commonly used time notation in the world today...

     format. In regular timekeeping mode, the current home time is displayed to the second, along with the month, date, and day of the week
    Week-day names
    The names of the days of the week from the Roman period have been both named after the seven planets of classical astronomy and numbered, beginning with Monday. In Slavic languages, a numbering system was adopted, but beginning with Monday. There was an even older tradition of names in Ancient...

    , without any button presses.
  • Auto-calendar correctly calculates month lengths, leap year
    Leap year
    A leap year is a year containing one extra day in order to keep the calendar year synchronized with the astronomical or seasonal year...

    s and days-of-the-week between 1985 and 2029.
  • One alarm. An unusual feature is that in addition to the hour and minute, a month and/or date may optionally be set, so the alarm will only sound during the specified month or on the specified day of the month.
  • Time signal
    Time signal
    A time signal is a visible, audible, mechanical, or electronic signal used as a reference to determine the time of day.-Audible and visible time signals:...

     (hourly chime.)
  • Countdown timer: Can be set for any duration from one second up to 24 hours, in one-second increments; optional auto-repeat function. The current home time is also displayed in countdown timer mode.
  • Stopwatch: 1/100th second, which measures net time, split time, and first- and second-place times; rolls over at 24 hours.
  • Illumination: Backlight is via Illuminator, an electroluminescent backlight, where a blue/green luminescence
    Luminescence
    Luminescence is emission of light by a substance not resulting from heat; it is thus a form of cold body radiation. It can be caused by chemical reactions, electrical energy, subatomic motions, or stress on a crystal. This distinguishes luminescence from incandescence, which is light emitted by a...

     makes the whole display visible at any light conditions.
  • Shock
    Shock (mechanics)
    A mechanical or physical shock is a sudden acceleration or deceleration caused, for example, by impact, drop, kick, earthquake, or explosion. Shock is a transient physical excitation....

    -resistant design, intended to survive a 10-meter fall. The new composite-case and steel panel back made the watch about 30% lighter, and better fitted to the wrist.
  • Water resistant 200m.
  • Battery
    Battery (electricity)
    An electrical battery is one or more electrochemical cells that convert stored chemical energy into electrical energy. Since the invention of the first battery in 1800 by Alessandro Volta and especially since the technically improved Daniell cell in 1836, batteries have become a common power...

    : One lithium
    Lithium
    Lithium is a soft, silver-white metal that belongs to the alkali metal group of chemical elements. It is represented by the symbol Li, and it has the atomic number 3. Under standard conditions it is the lightest metal and the least dense solid element. Like all alkali metals, lithium is highly...

     button cell
    Button cell
    A watch battery or button cell is a small single cell battery shaped as a squat cylinder typically 5 to 12 mm in diameter and 1 to 6 mm high—like a button on a garment, hence the name. Button cells are used to power small portable electronics devices such as wrist watches, pocket...

    , CR2016 (module 1545). Was expected to last two years or more.

External links

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