Patek Philippe S/S Blue Dial Power Reserve Nautilus B&P 3712/1A-001

A Rare Stainless Steel Power Reserve Moonphase Nautilus Gents Wristwatch, blue ribbed dial with applied index batons, subsidiary seconds at 4 0\'clock, date and moonphase indicator at 7 0\'clock, power reserve indicator between 10 and 11 0\'clock, a brushed and polished stainless steel fixed bezel, a brushed and polished stainless steel bracelet with a brushed and polished double deployant clasp, sapphire glass, automatic movement, exhibition back, in excellent condition, comes complete with a Patek Philippe box and Undated Papers.N.B. The 3712/1A was only made for a short period of time before the 5712/1A was released.