Choosing how to spend tens of thousands of pounds on a watch is a process that should be conducted slowly, carefully and most importantly, with pleasure. At £35,000, the Urwerk 103.08 TiAIN is not for the faint-hearted. Coated with an alloy of titanium aluminium nitride, the 103.08 is the hardest watch ever made, yet is lighter than gold and platinum. The coating makes the underlying metal incredibly resistant to scratches, shocks, oxidation and even acid.

The Urwerk 103.08 TiAIN is the world's first watch to be treated with this magical alloy. As a comparison, gold has a hardness of 380 Vickers, steel 600 and TiAIN an extraordinary 3500 Vickers.