Carbon core guard structure G-SHOCK MUDMASTER “GG-B100” secret story-The development team challenges the glory full of mud! (First night)

The G-SHOCK “MASTER OF G” series is developed for land, sea, air, extreme functions and performance required by each professional, and toughness. Along with “GRAVITYMASTER” [gravity master] of “sky” and “GULFMASTER” [gulf master] of “sea”, “MUDMASTER” [mad master] demonstrates outstanding performance on “land”.

In July 2019, the latest work “GG-B100"Appeared. Then, of course, you have to go to hear the development secret story. The news gathering team enthusiastically boarded the Ome Line and headed to the Casio Computer Hamura Technology Center.

■ G-SHOCK MUDMASTER “GG-B100” development secret story
1st 2nd 3rd Final episode
  • GG-B100


This function and the carbon core guard structure model are at this price

Before getting into the main topic, let me briefly touch on the product by example.

MUDMASTER “GG-B100” is G-SHOCK's latest shock-resistant structure “Carbon core guard structureIs adopted. The center case made of special reinforced resin [hereinafter referred to as carbon resin] kneaded with carbon fiber and the mud resist “Mad Resist” optimized and renewed for this are the main features. In addition, it is equipped with a “quad sensor” that adds a step tracker to a triple sensor that can measure azimuth, pressure, altitude, and temperature.

Although the power supply is a non-solar battery type, it is equipped with a mobile link function that connects to a smartphone via Bluetooth. In addition to being able to get the correct time automatically using the smartphone app “G-SHOCK Connected”, there are also new features that greatly improve usability. The color of the main model is khaki, and three other colors, black and orange, are available, and the price is 45,000 yen [excluding tax].

Based on the above, let's hear the story immediately. This time, Mr. Kazuhito Ushiyama, who was in charge of product planning for GG-B100, Mr. Iiichiro Hashimoto, who was in charge of design, and Mr. Takumi Yasuda, who was in charge of design.

“GG-B100G-SHOCK with carbon core guard structure"The product was developed with the desire to have more people around the world use it," says Ushiyama, product manager. “So we put a lot of effort into development,” he said.

  • Casio computer Mr. Kazuhito Ushiyama

    Casio Computer Kazuto Ushiyama Product Planning Dept.

Mr. Ushiyama"Released as a pioneer in the carbon core guard structureGRAVITYMASTER GWR-B1000Is equipped with a radio link solar mobile link, priced at 90,000 yen [excluding tax]. This was a product aimed at areas where the G-SHOCK brand was fostered, mainly in Japan.

Then, when thinking about what to do next, I would like more people to use the carbon core guard structure globally. So, in the MASTER OF G series, we decided to develop MUDMASTER, which is popular overseas, at a price that is easy to pick up. ''

  • GWR-B1000

    GRAVITYMASTER released as a pioneering model with carbon core guard structureGWR-B1000"

GWR-B1000Has a novel design [as G-SHOCK] that doesn't have a bumper that protects the buttons and the LCD, and the rigidity of the carbon core guard has been clearly demonstrated. However, this GG-B100 is a G-SHOCK traditional rugged design. The designer, Mr. Hashimoto, explains as follows.

  • GG-B100

    GG-B100 is G-SHOCK traditional rugged design

Mr. Hashimoto“This was a very difficult place to judge. I wanted to make a design that could see the new technology of carbon core guard. On the other hand, there was also the question of how far the design of the conventional MUDMASTER could be changed and how far it could be changed.”

Design is a message that can be spoken of

Mr. Hashimoto“To date, Casio has designed electronic musical instruments, digital cameras, etc. from calculators. One of the things we have learned is that there are surprisingly many parts that cannot be changed. In particular, the tendency is stronger as the tool is used by professionals.

For example, a calculator. A model that is really used in practice can change the usability completely by changing the key layout a little. Professional users have a strong commitment to tools, and the inclination of buttons and dents on the surface are soaked into the body. MUDMASTER is close to this. How to put in the DNA of the carbon core guard while taking over the “MUDMASTER-likeness”. That was the challenge.

It is also important to have a surprising design unlike G-SHOCK like GWR-B1000. However, especially in countries where G-SHOCK has not yet penetrated, it is also important to have a model that can tell what kind of watch it is. It ’s a message that does n’t require words to explain. THE G-SHOCK! [Laughs] "

  • Casio computer Mr. Iiichiro Hashimoto

    Casio Computer Co., Ltd. Watch Planning and Administration Department First Design Planning Department Mr. Iiichiro Hashimoto

Certainly, MUDMASTER GG-B100 can understand the watch character at a glance. Is the actual civil engineering equipment used as a reference for the design?

Mr. Hashimoto“I'm referring to parts splitting and cutting angles. I ride a motorcycle, but I also get hints from tools around it, such as impact drivers.

There are parts that can be understood only by using these tools. Oh, so here's a dent! And. The feeling of soaking into your hand at the moment you hold it. That is especially important. ''

In fact, the GWR-B1000 is also designed by Hashimoto. But how many people are aware that these two, which seem to have the opposite impressions, seem to be the same designer's hands?

Ushiyama“Since some customers say that G-SHOCK must be this [a design that emphasizes toughness], we want to respond to that voice. From low to high prices, the design is simple to rugged. The material is urethane. From metal to carbon, the wide range of options is also the strength of G-SHOCK. ''

  • “I want to respond to the voice that G-SHOCK must be this,” says Ushiyama.

Mr. Hashimoto says the point of the design of GG-B100 was how to use the case reinforced with carbon fiber for mud resist [mud protection], which is the biggest feature. MASTER OF G is one of the best hits in historyMUDMASTER “GWG-1000”[This was also designed by Hashimoto] had a structure that used metal pipes [cylinder structure] to muddy the mud. Its reliability is very high, but the assembly seems more complicated than expected.

  • GWG-1000

    MASTER OF G one of the biggest hits in history, MUDMASTER “GWG-1000”

Mr. Hashimoto“It takes a lot of work to cut a metal pipe, install it with packing, and fix it with an E-ring. However, a carbon resin case can be molded in an integrated state. .

The fact that one part can be assembled with multiple parts not only saves assembly, but also improves performance in all aspects of mudproofing, rigidity, and durability. Moreover, it contributes to weight reduction because it does not use metal parts. This is a big effect. ''

  • GG-B100 [left] carbon resin case and GWG-1000 [right] case. Metal pipe is used for the button base of GWG-1000

So, is Mr. Hashimoto a designer, but should we design with a thorough understanding of the theory of mad resists?

Mr. Hashimoto"Yes, it's true that you can't start designing without knowing in advance how much volume you need for mad resists. It's not an expert, but consciousness is important. I'm waiting"

Next time, continue to dig into the new mud resist optimized for carbon core guards.

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