SIGNED PATEK PHILIPPE, GENEVE, NAUTILUS MODEL, REF. 5726, MOVEMENT NO. 5'774'374, CASE NO. 4'666'545, CIRCA 2015

Reference 5726 was launched in 2010 in stainless steel only, with a leather strap. In 2012, Patek Philippe began production of the reference 5726-1A, which came with a stainless steel bracelet and lighter silver dial.