![]() Many G-Shock watches are black coated, culminating a modern and dynamic look on the wrist. Casio’s military and outdoor-orientated wristwatch not only performs better than some watches within the luxury sector when subject to extreme conditions, but it also looks different on the wrist. The name G-Shock is an abbreviation for Gravitational Shock which has now become a byword for pushing boundaries and re-shaping the course of watchmaking. Whether digital or analogue, these wristwatches are developed from materials like stainless steel, carbon and titanium to ensure a durable, strong and long-lasting quality on the wrist. Some of the most modern iterations feature atomic clock synchronization and innovative solar technology that enables the watch to run on solar power even when only exposed to natural daylight for a short period of time. The first G-Shock watch made its debut in 1983 and since then the collection has been evolving and growing. With a urethane foam cradle is where the quartz movement would “float”, and in addition to this, the model featured a robust strap that could support the watch during falls and bumps sustained during exploration. Hardened mineral glass and a tough stainless steel caseback also ensured a stable environment for a reliable quartz movement to perform inside. It featured an outer protective surface developed from urethane rubber and layers of special shock-resistant protection. Ibe noticed how a rubber ball could sustain a high level of shock and impact and began adapting this concept to the first G-Shock model called the DW-5000C. These stringent tests were carried out by a group of experts named the Tough Team.ĭropped from rooftops and three-story building windows, G-Shock watches were able to withstand these tough conditions to an extent but there still appeared a degree of room for improvement. ![]() To ensure Casio was creating a groundbreaking wristwatch that guaranteed these qualities, a total of 200 prototypes were tested beyond endurance. Each wristwatch needed to survive a 10-meter fall onto a hard surface, house a 10-year battery inside its rugged case and promise a 10-bar water resistance. Daring explorers, mountain climbers, trekkers, sportsmen and adventurer-seekers have been relying on the accuracy and robustness of a G-Shock watch ever since the first innovative design was developed, based on the triple 10 concept. The concept of the Casio G-Shock watch was born of a vision shared by Casio engineer Kikuo Ibe, who defied the laws of nature when he created the very first model. G-Shock watches are developed mainly for outdoor use. We conclude that women should not categorically be excluded from aircrew duties for reasons of G intolerance.When Casio created its G-Shock line of watches, there were very few shock-resistant watches on the market, and none capable of withstanding knocks, bumps and impact to the same extent. No important differences between women and men in signs or symptoms of G stress were observed, except for two instances of urinary stress incontinence in women during the Training Profiles. G tolerances of 47 women were measured on the Medeval Profiles both during and between menses, but no significant differences related to menstruation were found. On Standard Training G Profiles 88% of 24 women and 80% of 213 men completed the runs, but this difference was not significant. ![]() When the women were matched only by height to the men in the comparison group, the women's mean G tolerances were significantly lower than the men's. Covariance analysis controlling for differences in tolerance due to age, height, weight, and activity status revealed the women to have marginally lower tolerance the analysis also identified height as a factor having a strong negative influence on G tolerance, and weight as having a positive influence. ![]() Unpaired t-tests revealed no significant difference between the women and men in either relaxed or straining G tolerance. G tolerances of 102 women and 139 men subjected to Standard Medical Evaluation (Medeval) G Profiles were compared.
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