Casio's G-Shock sub-brand has upped the sportswatch ante with its new Premium G range and the advanced Master of G line, which includes Mudman - featuring "additional protection against micro particles" - Gulfman (rust resistant) and Riseman (equipped with altimeter, thermometer and barometer).

Watch of the collection
Any of the Aviator models, which are said to be the toughest of the Premium Gs. They are designed along the lines of aircraft instruments, with highly luminous dials featuring blue or orange highlights (above).From £230.