# Collector's Island Select Product List is here This is a very rare, new, openwork-specific explanatory booklet, not generally available, specially provided upon the purchase of the Audemars Piguet Royal Oak Double Balance Wheel Openworked. This booklet was specially produced for the Royal Oak Double Balance Wheel Openworked, which features the new patented movement "3132," incorporating two balance wheels and hairsprings set coaxially, a new model from 2016. Openwork, which combines beauty and function, has been a specialty of Audemars Piguet since the 1930s, and along with minute repeaters and tourbillons, it can be considered the pinnacle of the Royal Oak. - Model Name: Royal Oak Double Balance Wheel Openworked - Brand Name: Audemars Piguet - Features: Openwork design - Materials: Rose gold and stainless steel - Functions: Double balance wheel Thank you for viewing. #AudemarsPiguet #Patek #Audemars #Vacheron #Vacheron #Patek #Audemars #Rolex