Audemars Piguet Royal Oak Vintage 'B SERIES' INCREDIBLE TROPICAL DIAL

Audemars Piguet 5402 ST Royal Oak B Series, 5402ST, the 5402 was the first series of the Royal Oak introduced in the early 70s, the stainless steel case is in remarkable original condition and may not have ever been polished, all edges are thick and extremely crisp (especially on the bezel) which is very rare to find, double deployant clasp, automatic legendary ultra thin caliber 2121 also found in the Vacheron Overseas 222 and Patek Philippe Nautilus 3700, the dark grey dial has aged to a very nice and even brown "tropical" effect, most aged 5402 dials do not turn this charming color, the dial has aged uniformly and all the tritium on the dial and hands are original and unaltered, applied steel AP on the dial, Audemars Piguet signature is still bold and clear, solid case back showing "B" serial number n 19XX, diameter: 39mm, thickness: 7.1mm, Outstanding Collector condition for an iconic and important Audemars Piguet reference. The watch comes with a certificate of authenticity from Audemars Piguet, as well as a service receipt from 10 / 2014 totaling $4311. It is confirmed by Audemars Piguet that the watch was sold in Germany on August 11th 1976.