Audemars Piguet Perpetual Calendar Ultra-Thin

Audemars Piguet Royal Oak Perpetual Calendar Ultra-Thin, reference 26586BA.OO.1240BA.99, measures 41 mm in yellow gold. The case is a slim 6.2 mm thick, in keeping with the ultra-thin construction, and the gold dial sits under a sapphire crystal. Inside is the self-winding calibre 5133, an ultra-thin perpetual calendar movement with moon phase, month, weekday and date indications tracked across the dial. This is a special edition, produced in yellow gold throughout the case, dial and bracelet for a monochromatic finish. The bracelet is yellow gold with an AP folding clasp. Water resistance reaches 50 metres.