Casio g shock 6
In 1983, Casio engineer Kikuo Ibe designed the first G-Shock: the DW-5000C.  It had a 10-year battery life, water resistance to 10 bar and was able to survive a 10 meter fall onto a hard surface (he tested 200 prototypes by dropping them from rooftops or third story windows).    .  The shock resistant design has 10 layers protecting the quartz timekeeping module  , including a urethane rubber bumper, the stainless steel case, the hardened mineral glass watch crystal, the stainless steel screwed down caseback, and the "floating module" where the quartz mechanism floats free in a urethane foam cradle, with the outer buttons and LCD module attached with flexible cables. Casio released the G-Shock in April 1983, to fill the demand for durable watches. The popularity of G-Shocks increased throughout the 1990s. By 1998 Casio released over 200 G-Shock models. By then Casio had sold 19 million G-Shocks worldwide.  In 1991, Casio released the Baby-G series for women. G-Shock Mini are 70% the size of a G-Shock, for people who have smaller wrists. They are available in Japan and can be shipped worldwide. On September 1 2017, Casio celebrated its 100 millionth shipment of G-Shocks worldwide.  The line of watches now includes atomic clock synchronization and solar battery . The Cockpit Series G-Shock is the official timekeeper of Nismo Racing. Many newer G-Shocks feature metal (steel or titanium) banding and analog timekeeping. DW are standard G-Shocks while GW G-Shocks comes in either Tough Solar or Atomic or both. Twice a year the basic models are updated. New limited models are introduced more frequently through the year. As with Swatch watches, G-Shocks have become collectors items. Casio also produces collaboration models, often with popular fashion brands, like A Bathing Ape (Bape), Stussy ,  Xlarge, KIKS TYO , Nano Universe, Levi`s , Lifted Research Group, as well as Coca Cola , Pulp68 Skateshop, Lucky Strike and Marlboro . G-Shock watches are popular with mountaineers , firefighters , paramedics , people working in the offshore, police officers , astronauts , film directors ( Tony Scott was often pictured wearing a GW-3000B, as is Ron Howard and Francis Ford Coppola ) and soldiers . Ex- Special Forces-British SAS soldier Andy McNab mentions in several of his novels how his character Nick Stone relies on a G-Shock watch. According to Mark Bowden `s book Blackhawk Down , the DELTA Operators wore G-Shock watches during the combat events of 3 & 4 October 1993. Since then, G-Shock watches have become very popular with Special Forces groups in both American and other NATO nation units, due to their being "battle tested".[ citation needed ] Models DW-5600C, DW-5600E, DW-5900, DW-6600, DW-6900 are flight-qualified for NASA space travel.  Casio has updated the DW-5600E module, replacing the usual 1545 module with module number 3229 (in 2010).  In 2012, Casio released GB-6900, a Bluetooth -capable model of G-Shock. Casio claimed the battery life of 2 years on a single CR2032 battery.  Casio continues to add new features to G-Shock watches. Some include Tough Solar battery charging and Multiband 6 time synchronization through radio signals from six transmission stations worldwide. The GW-9400 Rangeman and GWN-1000 Gulfmaster models have a Triple Sensor with a digital compass, thermometer, and barometer/altimeter. The MTG-S1000, GW-A1000, and GPW-1000 feature Triple G Resist which includes resistance to shock, centrifugal gravity , and vibration. In 2014 Casio introduced the GPS Hybrid Wave Ceptor feature in the GPW-1000 Gravitymaster that allows the watch to synchronize the time through GPS signals and also adjusts the time zone automatically. The MRG-G1000 is also equipped with this feature.[ citation needed ] For square G-Shock watches this is highest end premium watch. This model is only available for the Japan domestic Market. The features for this watch include a screw down watch back, DLC (diamond-like carbon) coating, softer and higher quality urethane strap, steel module case, slightly heavier build quality, slightly thicker watch case, solar charging, multi-band 6 and back-light.  This model is similar to the GW-5000 but at a fraction of the price.  It represents excellent value for the money when compared to the 5000, however the 5610 is still an excellent watch even by itself and many users will definitely be more than happy with this G-Shock without paying more than twice the price for the 5000. To clear up any confusion, even though this watch has a higher model number (5610), the 5000 is considered a superior watch in many ways. Visually there is a red outline on the 5610 watch face compared to the more low-key 5000. G-Shock watches with Multi-Band 6 can tune into an atomic clock for automatic time keeping. There are currently six radio towers around the world: Watches can tune in to two locations: The 40kHz signal from JJY at Mount Otakadoya, near Fukushima (Ohtakadoyayama). Watches tune to the 68kHz signal from BPC at Shangqiu . This is the newest additional signal; older multi-band 5 watches will not be able to connect to this signal. You will need to upgrade to a newer multi-band 6 watch for it to work. On December 12 2017, G-Shock has earned the Guinness World Record for the heaviest vehicle to drive over a watch. Guinness World Record drove a 24.97 ton truck over the Casio G-Shock DW5600E-1. The G-Shock is the first watch by any company being able to withstand the challenge. 
CASIO’s shock-resistant G-SHOCK watch is synonymous with toughness, born from the developer Mr. Ibe’s dream of ‘creating a watch that never breaks’. Over 200 handmade samples were created and tested to destruction until finally in 1983 the first, now iconic G-SHOCK hit the streets of Japan and began to establish itself as ‘the toughest watch of all time’. Each watch encompasses the 7 elements; electric shock resistance, gravity resistance, low temperature resistance, vibration resistance, water resistance, shock resistance and toughness. The watch is packed with Casio innovations and technologies to prevent it from suffering direct shock; this includes internal components protected with urethane and suspended timekeeping modules inside the watch structure. Since its launch, G-SHOCK has continued to evolve, continuing to support on Mr. Ibe’s mantra “never, never give up.” www.gshock.com .
From G-SHOCK, the timepiece with a tough design that never goes out of style, comes a new model with the World’s First*1 Solar-Assisted*2 GPS Navigation for the G-SHOCK RANGEMAN. *1 Based on a Casio survey as of January 9, 2018 outdoors, solar charging can be used to resume GPS functions for a limited time. The time display is kept powered at all times using solar charging, regardless of the status of GPS functions. The RANGEMAN is part of the “Master of G” series of watches designed for use in the most extreme conditions. RANGEMAN watches incorporate Triple Sensor to measure compass bearing, atmospheric pressure/altitude, and temperature, based on the concept of “Survival Toughness.” In addition to Triple Sensor, the new GPR-B1000 is capable of GPS navigation—a first for a G-SHOCK watch. The watch collects location data from GPS satellites to display the current location on a route or bearing to a destination, in real-time. The watch also saves track and point data (including longitude/latitude, altitude, and temperature) in memory. The GPR-B1000 delivers toughness in construction and materials, with a dust- and mud-resistant structure and carbon fiber insert band. Designed for the ultimate in survival toughness, the GPR-B1000 is the latest evolution of G-SHOCK.