Patek Philippe 18k Y/G Jumbo Beta 21 Electronic 3587-2

An 18k Yellow Gold Jumbo Beta 21 ElectronicCushion Case Gents Wristwatch, two tone champagne dial with applied gold baton indicators,date displayed at 3 0\'clock, an18k yellow gold stepped bezel,an 18k yellow gold integrated perforated bracelet with an 18k yellow gold jewellery style clasp, quartz movement,in excellent condition, comes with an original box, our own certificate of authenticity, our own one year warranty and the Extract from the Archives which shows the original date of sale as 19th of April 1974. The Beta 21 is an electronic caliber. The movement features a quartz crystal and interestingly, while the natural oscillation rate of the quartz crystal is 8192 Hz, Patek reduced the oscillation rate to 256 Hz by means of a proprietary frequency reducer. The seconds hand sweeps (as opposed to the usual ticking of quartz regulated movements).