The Patek Philippe Ref. 2554 is one of the rarest post-war watches of the famous Geneva brand, founded in 1839. It was nicknamed by collectors "Manta Ray" due to the shape of its case reminding the eponymous animal. Elegant and pioneering, its design was taken up again some forty years later, in the 2000s, when Patek Philippe presented the reference 5100 to celebrate the transition to the new millennium. This very rare reference - the last time Antiquorum presented a similar piece was in 2012 - is a must-have for all collectors.