Patek Philippe Nautilus Chronograph 5980/1A-001. Case diameter 40.5mm (44mm across not including winding crown) water resistant to 120 meters.
Automatic Patek Philippe Caliber CH 28-250, 35 jewels, 28,800 vph, column-wheel control of chronograph movement, rotor on zirconium oxide ball bearings, seal of Geneva.
Functions, hours, minutes, sweep seconds, chronograph and date.
Black outer dial degrading to blue, applied hour markers with luminescent coating.
Brushed and polished steel bracelet with double folding clasp and safety. All box and papers.