An intriguing variation on the original Audemars Piguet Quantième Perpétual, this rose gold reference 25668OR makes every effort to display the artistry and skill required for this openworked piece. From a glimpse into the complicated inner workings to the deft hand-engraved movement, the watch is a visual feast for the wearer. It is believed that only 205 pieces were produced across the reference, with just 30 in rose-gold.