Audemars Piguet Royal Oak Concept GMT Tourbillon White Ceramic (2014)

This version was launched in 2014, the case is in white ceramic and titanium in 44mm. The manually wound movement have a long power reserve of 237 hours, which is almost 10 days, and it beats at 3Hz. Tourbillon is at 9 o’clock. Priced at US$213,000.00