Audemars Piguet Royal Oak Concept watch is a milestone. The Audemars Piguet Royal Oak RD#1 watch is a unique prototype piece inheritage the spirit of AP.it also called Audemars Piguet Royal Oak Concept RD1 Acoustic Research.
Audemars Piguet Royal Oak RD1 GMT Tourbillon was crafted of titanium, white ceramic and other high-tech materials. It housed an exciting new caliber that requires special machinery to make it, not to mention oodles of time. 
The Audemars Piguet Royal Oak Concept RD1 has a 44-mm-diameter titanium case, bezel, and chronograph pushers. It has a black dial and luminescent-coated hands in the Royal Oak Concept style.
The chronograph function has a central sweep seconds hand and a linear, 30-minute counter at 3 o’clock; the tourbillon is at 6 o’clock. The manual-wind movement has a frequency of 21,600 vph and stores a power reserve of 48 hours.
