Worldtime 5110 J-001Full Set - Yellow Gold on leather strap with folding clasp Calatrava cross, whiteguilloche dial, disc 24 cities time zones, disc indicator 24 hours, single push to change all the functions, automatic movement with Patek Philippe gold micro-rotor Caliber 240 HU, sapphire caseback. With original box and papers, full set! Much inspired by the first world time wristwatches introduced in the 1930s, reference 5110 was launched in year 2000 and was the first wristwatch with world time complication offered by Patek Philippe since 1965. Built with an ingenuous push button to adjust the time zone, the present wristwatch is able to display the time of 24 cities. With a strong and continuously growing popularity, reference 5110 was produced until 2006 and later replaced by reference 5130.