Oris Big Crown Complication

The Oris Big Crown Complication, reference 01 581 7627 4361-07 5 20 77FC, is a GMT watch with a 40 mm steel case, a see-through case back and 20 mm lugs, on a leather strap, water resistant to 100 metres. A rose gold PVD-plated steel bezel surrounds the silver dial under sapphire domed on both sides. The dial shows central seconds, date, weekday, second time zone indications and a moon phase window. Calibre 581 is self-winding with a power reserve of 38 hours.