August 23, 2006 Casio was the first watch manufacturer to create a wristwatch with a built-in Global Positioning System (GPS) way back in June, 1999 with the release of the SATELLITE NAVI as the top model of the outdoor watch series, PROTREK. It created a new genre of wrist worn devices but alas, in the ensuing seven years, the likes of Garmin, Suunto and Timex have come out with smaller, more elegant wrist worn GPS solutions but as of September 30, Casio will be back with the smallest GPS watch available in the form of the GPR-100 priced at JPY54,000 (USD$464). To achieve its goal, Casio has had to develop a “microminiature high sensitivity GPS reception antenna of length 19mm” and a small advanced GPS module (11mm-12mm). The result is the world’s lightest GPS watch, weighing just 64 grams, and the world’s smallest GPS watch at 63.1mm x 49.5mm x 17.1mm.
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