1972-1975 pre-owned Royal Oak Ultra Thin 39mm from Audemars Piguet featuring black, stainless steel, octagonal face, automatic movement, adjustable link bracelet, clasp fastening, index dial, baton hands, date indication and screw-down crown. This item comes with a standard two-year warranty from WatchBox.. This watch has been evaluated and authenticated by a WatchBox in-house Swiss-trained watchmaker..