One for the retro sci-fi buffs, Japanese watchmakers Casio revives its 70s style F100 watch – made famous by the Alien film franchise. Crafted from gold-plated metal, it features retro colour-coded front-facing buttons and is loaded with cool features like an auto calendar, a daily alarm and an LED light. You’ll also discover a slide-type clasp that allows you to adjust the length of the band with ease - pretty stellar for a retro-cool piece of sci-fi movie history.