Regulators were originally designed as instruments of supreme precision, used by watchmakers as a reference when making new watches. With its distinctive subsidiary dials for hours and minutes and sweep minutes hand, Patek Philippe’s reference 5253G-001's minimalist design also includes an annual calendar. This piece, from our 13 May Important Watches sale in #Geneva, is finished in lavish detail: the Patek Philippe name is delicately engraved at 3 o’clock on the stunning satin finished dial. #sothebyswatches #sothebysgeneva patekphilippe #patek #patekphilippe #patekaholic #Patekcollector #annualcalendar #regulatorwatch