Audemars Piguet recently unveiled the Royal Oak 2017 collection at SIHH, to mark the 20th anniversary of their classic Royal Oak chronograph. The seven piece capsule collection features four models in pink gold with matching pink gold bracelets or alligator straps. The other three are crafted from steel with matching stainless steel bracelets. The Audemars Piguet Royal Oak Chronograph was first introduced in 1997 in a 39mm version. The size was later increased to 41mm, and the new models are based on the same 41 mm case. All seven models in the new series feature a fresh, two-tone dial design with several new yet subtle details: chronograph counters of increased size that expand at 9 o-clock and 3 o’clock, shorter but wider hour-markers, additional luminescent coating for a better readability of the hour and new typeset and transfers.