Patek Philippe Complications 5905P-001

The 5905P-001 is one of Patek Philippe's Annual Calendar Chronographs - watches that combine two practical complications. The annual calendar function only needs to be adjusted once a year on the 1st March and the chronograph has a practical 60 minute counter. The 5905P-001 shows off the Blue Sunburst dial in its 42mm platinum case with sapphire-crystal case back.