There's good news for fans of mechanical wonders: state-of-the-art technology and superb craftsmanship are not just limited to the most coveted timepieces.

How about a mechanical belt buckle with some serious bling? It's exactly what you need to stand out from the crowd. Swiss designer Roland Iten, dedicated to creating mechanically performing pieces for the true gentleman, has come up with the world's most expensive belt buckle - the full-pavé Calibre R822 "Predator" mechanical piece. The platform is made of hi-tech titanium, while the 18ct white gold body, accented with red gold, is embellished with 387 quality baguette-cut and round-cut diamonds totalling 14.15ct. Masterfully designed, crafted and assembled, the self-cleaning complication engages with the holes of a leather strap effortlessly. The buckle can be easily tightened or loosened with just one hand, while security pushers ensure against accidental release. It comes in a limited edition of three, so only a lucky few will have the chance to experience the Holy Grail of mechanical masterpieces.