This Patek Philippe is most expensive watch ever sold at online auction

At Christie's "Top of the Time" online auction based out of auction house's Hong Kong outfit, a Patek Philippe 'Sky Moon Tourbillon' sold for $5.8 million (HK $45.4 million) to an anonymous buyer. This stunning Patek Philippe timepiece set a new record for an online auction, using a new avenue for the pre-owned watch industry that's gaining more and more traction. The rare watch, part of Patek's Grand Complications series, featured 12 complications such Cathedral minute repeating, tourbillon, perpetual calendar, retrograde date, moon phases, Leap Year indication, sidereal time, sky chart, and phases and orbit of the moon. The watch…