Oris Big Crown Complication 2004

The Oris Big Crown Complication 2004, reference 01 581 7566 4061-07 8 19 61, is a GMT watch with a 38 mm steel case, 19 mm lugs and a steel bracelet, water resistant to 50 metres. Beneath a domed acrylic crystal, the silver dial displays central seconds and a moon phase window. Subsidiary displays indicate the date, weekday and second time zone. The multi-piece case closes with a screwed see-through back. Self-winding calibre 581 maintains a 38-hour power reserve.