Audemars Piguet Perpetual Calendar Ultra-Thin

Audemars Piguet's Royal Oak Perpetual Calendar Ultra-Thin, reference 26586XT.OO.1240XT.99, has a titanium case measuring 41 mm across and 6.2 mm thick. The salmon dial sits under a sapphire crystal and is paired with a titanium bracelet closed by a folding clasp. Inside is the self-winding Calibre 5133, an in-house movement that drives the perpetual calendar. That calendar tracks the date, weekday and month while also displaying the moon phase, all correcting automatically for leap years. This example is a limited edition, part of a run distinguished by its titanium and BMG bracelet construction. Water resistance is modest for the collection: the case is rated to 50 metres.