DW-5600

THE ORIGIN
DW-5600

ABSOLUTE
TOUGHNESS

The watch that brought the new concept of toughness to timepieces. 5600, a number used only in the names of models that have inherited the DNA of the very first G-SHOCK among all the thousands that have succeeded it. The square design that is said to symbolize the origin of all G-SHOCK provides evidence of the tireless efforts and continuous innovation born from a developer’s belief that he could create a watch that would never break, even when dropped, and represents the final form of every G-SHOCK aims to achieve. Today, nearly 4 decades of evolution, this tough spirit remains a resilient as ever. It is still the source of G-SHOCK’s indomitable strength.

STORY BEHIND

THE BIRTH OF G-SHOCK

A THOUGHT EXPRESSED IN ONE LINE

"Unbreakable" Watch

“I want to make a timepiece that will not break, even if dropped.” This proposal, submitted at an internal meeting over 35 years ago, suggested that the development should be a one-man job handled by Kikuo Ibe, the engineer responsible for the external design of watches at the time. It was considered a clear, simple idea that had come up when a watch happened to drop and break during working hours. Watches are delicate precision instruments, and, at that time, it seemed only natural that they should break when falling to the floor. The concept of a tough watch seemed not only unconventional, but even nonsensical. Nevertheless, the proposal was accepted. A project team comprising just three people was formed — and development of the new watch began.

A TUNNEL WITH NO EXIT

Hard Days

The team’s initial approaches to overturning common sense began from zero. They first assumed it would be best to cover the entire watch with a soft material. A few dropping experiments put that idea to rest without delay. They found that a watch would break no matter how much shock-absorbent rubber was adhering to the case exterior. And the more cushioning material they attached, the more the size increased. The experimental model soon swelled to the size of a large softball.

A 5-step shock-absorbent structure that protected the module, or heart of the watch, with five cushioning materials was eventually devised, solving the size problem. But a new problem concerning the strength of the electronic parts soon arose. When the team members tried to reinforce the parts, they became caught up in a vicious cycle in which strengthening one broken part led to the breakage of another.

This unanticipated process of trial and error continued day after day: The developers would drop a prototype with reinforced parts from the window of the 3rd-floor men’s room and watch it break on the ground 10 meters below. They would then analyze the broken parts, strengthen them and try again. The cycle seemed endless.

A “MIRACLE MOMENT” ARRIVES

Breaking Through

With development apparently going nowhere, Ibe made a decision in despair. In one final effort, he would set a time limit of one week on his own initiative and spend all his waking hours on research. If that were not enough, he would consider resigning from his job.

After another week without success, the fateful day arrived. Ibe stepped outside the laboratory building to catch a breath of fresh air in a park next door, where he saw a child bouncing a rubber ball.

Suddenly, an inspiration struck him: “If you attached a watch to that ball, it could endure severe shocks.” The idea that sprang to mind in this miracle moment expanded to complete a unique structure in which the module at the heart of the watch floats in the air within a hollow structure inside the case.

The Ultimate Form As Origin

It was not long before the first G-SHOCK, the model DW-5000C, was launched in 1983. The square design with its symbolic importance was created in pursuit of shock resistance alone, with nothing wasted. The ultimate form for achieving this single function, it has been handed down to the present as an eternal standard. Belief engenders fruit. G-SHOCK’s origin is the story of an unwavering belief that inspired a relentless quest and produced a tough spirit that promises never to fade away.

STRUCTURE

Unwavering Toughness,
Invariable Structure,
Timeless Design

ALL-DIRECTIONAL
COVERING

Knobby protrusions from the case and bezel protect the buttons and crystal from direct shocks.The band connection section is stiffly curved, moreover, to shield the back of the case against direct shocks.

STRUCTURAL
REINFORCEMENT

Since the launch of the DW-5600E in 1996, the inner case has been constructed of resin. Exchanging the case back for the back of a panel enabled further weight reduction. Structural changes introduced to increase shock resistance included efforts to reinforce the module further against impacts.

HOLLOW CASE
STRUCTURE

The module is floated in the air inside a case with a hollow structure. External shocks are mitigated. The materials are selected for their flexible shock-absorbent characteristics. Urethane resin is used as durable exterior material.

UNCHANGEABLE
SQUARE DESIGN

A rectangular form was devised as the optimal shape for shock-resistant construction. This form, which eliminated all waste and became the original G-SHOCK form, still boasts a perfection that is recognized as the final form.

STRUCTURE

Unwavering Toughness,
Invariable Structure,
Timeless Design

HOLLOW CASE
STRUCTURE

The module is floated in the air inside a case with a hollow structure. External shocks are mitigated. The materials are selected for their flexible shock-absorbent characteristics. Urethane resin is used as durable exterior material.

ALL-DIRECTIONAL
COVERING

Knobby protrusions from the case and bezel protect the buttons and crystal from direct shocks.The band connection section is stiffly curved, moreover, to shield the back of the case against direct shocks.

UNCHANGEABLE
SQUARE DESIGN

A rectangular form was devised as the optimal shape for shock-resistant construction. This form, which eliminated all waste and became the original G-SHOCK form, still boasts a perfection that is recognized as the final form.

STRUCTURAL
REINFORCEMENT

Since the launch of the DW-5600E in 1996, the inner case has been constructed of resin. Exchanging the case back for the back of a panel enabled further weight reduction. Structural changes introduced to increase shock resistance included efforts to reinforce the module further against impacts.

FUNCTIONS

Assuring practical usability under any circumstances

1996

Stronger in the Dark

LIGHT FUNCTIONS

The development of an EL backlight improves the practicality of the dial light function compared to the conventional miniature bulb. As time passes, the backlight will evolve into an auto light that turns on automatically with just a tilt of the wrist, and eventually into a high-visibility LED light.

*Photo shows model DW-5600E-1.

2002

Converting Light to Power

SOLAR-POWERED

CASIO’s proprietary solar-charging system that converts light into ample electric power to provide stable operation of multiple functions is launched. It is installed in many models to eliminate the bother of periodic battery replacements.

*Photo shows model GB-5600AA-1.

2005

Keeping Accurate Time

RADIO-CONTROLLED

A watch equipped with a reception function that receives standard time radio waves and corrects the time automatically and provides greatly improved accuracy over a quartz watch display appears. Multiband 6 models can receive radio waves from 6 broadcasting stations around the world.

*Photo shows model GW-5600J-1.

2008

Pursuit of Multifunctionality

SPORTS FUNCTIONS

Watches loaded with functions for use in wide-ranging sports appear, including stopwatches for soccer and Tide Graph/Moon Data displays for fishing. The spheres of tough watch activity continue to expand.

*Photo shows model GLX-5600-7.

2008

Undefeated by Cold

LOW-TEMPERATURE RESISTANCE

Watches that continue to pursue the tough performance of the original G-SHOCK while supporting operation in low-temperature environments as cold as -20°C are introduced. They support activities in extremely cold environments, from snowy mountains to icebound polar regions.

*Photo shows model GLS-5600X-6

2012

Improved Usability

BLUETOOTH®

Bluetooth® communication is adopted to provide automatic time correction from a smartphone. Various other operations, such as alarm and timer setting, can also be managed with the smartphone app, moreover, realizing easy operation without touching the watch. Daily life usability is more convenient than ever.

*Photo shows model GB-5600AA-1.

DESIGN

EVOLUTION OF COLOR

The introduction of color resin in 1992 was followed by the development of various colorings, such as mixed color molding and skeleton (transparent) resin, drawing on the properties of resin. Case and band decoration making full use of advanced coating and printing technologies was also realized, moreover, greatly expanding the range of design possibilities.

EVOLUTION OF GRAPHICS

Design innovations included inverting the LCD to make the backlight inconspicuous during night activities and expanding the expressive possibilities of digital watches through suck gimmicks such as logos and graphics that emerge when the EL backlight is illuminated.

QUALITY

STRIVING FOR GREATER HEIGHTS IN A COMMITMENT TO PRODUCT MANUFACTURING

EVOLUTION OF MATERIALS

While urethane resin remains a mainstream band material, various other materials have been developed in pursuit of greater strength. Besides meeting the demands of hard use, these developments have led to improved wearability and provide new directions for product design.

EVOLUTION OF VALUE

By devoting unstinting attention to materials and finishing, G-SHOCK seeks to express the eternal value of strength. The concept model is just one of many to realize an incomparable level of quality.

CHRONICLE OF 5600 SERIES

2015

DW-D5600BW-7

Tiger Camouflage Model

2015

DW-5600PM-1

Marble Polarized Coating Adopted

2013

GW-M5610SD-8

Desert Beige Model

2012

GB-5600AA-1

Smartphone Link Installed

2012

DW-5600LP-1

Artist (filip pagowski) design model

2011

DW-5600PR-4

Artist (pala) Collaboration Model

2010

GLS-5600KL-6

Artificial Opal Dial Installed

2010

GW-S5600-1

Carbon Fiber-insert Band Adopted

2009

GW-5000-1

Multiband 6 Model

2008

DW-5600EH-7

Eric Haze Collaboration Model

2005

DW-5600WC-1

World Cup Anniversary Model

2005

GW-5600J-1

1st Radio-controlled, Aolar-powered Model

2004

G-5600L-1

Wide Leather Band Adopted

2002

G-5600-1

1st Tough Solar Model

2002

DW-5600CF-3

Camouflage Color Model

2001

DW-5000D-8

Metal Band Adopted

1999

DW-056USV-5T

Cloth Band Adopted

1996

DW-5600ED-4

Bumper Protector Installed

1996

DW-5600E-1

1st EL Backlight Installed

1992

DW-5600C-9B

1st Yellow Color Model

1988

DW-500C-1

BABY-G Pioneer Model

1987

DW-5600C-1

1st 5600 Series Model

1983

WW-5100C-1

-30°C Low-Temperature Resistance Spec

1983

DW-5000C-1A

1st Commemorative Model