The split-seconds chronograph and perpetual calendar Reference 5204 is heir to one of Patek Philippe’s most sought-after Grand Complications. It has been available since 2016 in two rose gold versions, one with a silvered opaline dial and chocolate brown alligator strap (5204R-001), the other with an opaline ebony black dial and rose gold Goutte (droplet) bracelet (5204/1R).