G GPS watches certainly aren't new 'round these parts, but a timepiece that sticks up around 1.1-inches off your arm has to set some sort of unwanted record. Hot on the heels of the company's MG-920 Bluetooth GPS receiver, Mainnav is offering up a GPS wristwatch with built-in Bluetooth and a SiRF Star III LP chip that could probably double as a weapon in a fistfight. Aside from sporting an unnaturally large design, the Taiwanese device can track your current position, operate as a standalone GPS receiver, and also handle heart-rate monitoring, speed and distance tracking, and sense the temperature whilst frolicking in the great outdoors. Unsurprisingly, this beast can handle underwater excursions without a hitch, and the built-in Li-ion cell should keep things humming along for a good bit before needing a recharge. As of now, it doesn't look like Europe nor the US will ever see the behemoth on their shelves, which seems fairly smart considering the fashion sense most of western civilization holds dear.