1. Cartier’s diamond-encrusted La Dona in pink gold uses bracelet links reminiscent of crocodile scales (£12,550).
2. The macho Zenith Defy Extreme Chrono (£9,195).
3. Breguet’s steel marine chronometer (£7,700).
4. Tag Heuer’s entry price chronograph, the Carrera Tachymetre (£1,550)