Audemars Piguet Perpetual Calendar Watch, Model 11. 59, Reference Number 26494BC. OO. D350KB. 01   To celebrate its 150th anniversary, Audemars Piguet highlights a 41mm automatic never ending calendar watch (model: 26494BC. OO. D350KB. 01), more enhancing the exceptional efficiency of its calendar perform. Released alongside two fresh Royal Oak models, this specific...