23. Fortis Mars 500 Chronograph
So tough it’s worn over the space suit, this is the official watch of the Mars 500 cosmonauts. It’s got a 42mm titanium case, automatic movement with 25 jewels and an Incabloc shock absorber. It’s also water-resistant to 200m, if you happen across a lake on your red planet travels.
Price: £2,980 | fortis-watches.com