Casio are offcial suppliers to the Red Bull Racing team, and produce a range of high-tech watches that are perfect for Formula 1 fans. Their EQB-500 watch features Global Time Sync technology, which links the watch with your smartphone via a downloadable app to automatically adjust to the correct local time. In addition to displaying local time, it can also simultaneously show the time in any one of 300 cities worldwide. Meanwhile, Casio’s Tough Solar Technology lets the EQB-500 convert light into power to continuously drive its functions. We’re giving away fve of these hi-tech watches.