Audemars Piguet Selfwinding Pink Tourmaline "50th Anniversary"

Audemars Piguet's Royal Oak Selfwinding Pink Tourmaline "50th Anniversary", reference 15554BC.TM.1274BC.01, has a white gold case measuring 37 mm across and 9.8 mm thick. The case is paired with a sapphire crystal and a pink dial. Inside is the self-winding calibre 5909, which drives the hours, minutes and centre seconds. The bracelet, also white gold, is set with diamonds, in this instance baguette-cut pink tourmalines, and closes with an AP folding clasp. This particular example also carries the Royal Oak's 50th anniversary oscillating weight, a detail unique to this anniversary series. The case holds its water resistance to a depth of 20 metres.