Patek Philippe Nautilus 5990

Patek Philippe Nautilus 5990/1423G-001 is a chronograph in white gold, measuring 40.5 mm across. The case stands 12.53 mm thick and is set with diamonds, with further baguette-cut diamonds on the crown. Inside is the self-winding calibre CH 28-520 C FUS, offering a flyback chronograph and a GMT function with a home time and local time display, along with a date. The sunburst charcoal grey dial has a black-gradient rim and carries luminous hands, and the sapphire crystal caseback exposes the movement. The white gold bracelet is set with baguette-cut diamonds and emeralds throughout, using an invisible setting technique. Water resistance is rated to 30 metres, modest for a piece built more for the jeweller's bench than the diving bell.