Patek Philippe · Automatic

240 PS IRM C LU

The calibre 240 with a power-reserve indicator (IRM), date hand (C), moon phase (LU) and small seconds (PS) built onto it. The base's off-centre 22-carat gold micro-rotor sits within the movement rather than above it, so carrying four extra displays still leaves the calibre under four millimetres thick. The rotor winds in one direction only, and the balance is a free-sprung Gyromax.