What can your watch do? If it can't measure wind speed, host a hand of poker or display an animation of a galloping horse, it's not going to trouble our list of the craziest complications ever made. Imaginative - and incredibly clever - watchmakers have given us dozens of outlandish mechanical creations over the years: in this episode we select our favourites. These are the watches that we think rank above all others for mechanical audacity, engineering complexity and - let's face it -  sheer ludicrousness. Other watches may be more complicated, racking up functions with a joyless one-upmanship, but these watches are the wildest, weirdest and most wonderful things ever to grace a wrist. From brands such as Ulysse Nardin, Konstantin Chaykin, Jaeger-LeCoultre, Richard Mille and many more, these watches are a journey through the most exotic outposts of modern watchmaking.