Patek Philippe. A fine and rare Limited Edition lady's 18K rose gold and diamond set World Time wristwatch with central moon phase Model: World Time Moonphase Reference: 7175R-001 Date: Purchased 10th March 2015 Movement: 35-jewel Cal.240 HU LU automatic, Gyromax balance, adjusted to heat, cold, isochronism & 5 positions, gold micro-rotor, stamped with the Seal of Geneva, No.5869216 Dial: Black star spangled central disc, champagne chapter ring with silvered dot hour markers, outer champagne and matte silvered revolving diurnal and nocturnal 24-hour chapter, further outer silvered revolving chapter bearing the names of 24 world cities, pierced rose gold hands Case: Polished round with unusual bombé lugs, snap on back, world time adjusting button in band, No.6018192 Strap/Bracelet: Associated strap Buckle/Clasp: Signed folding clasp Signed: Case, dial & movement Size: 38mm Accompaniments: Patek Philippe 175th Anniversary presentation box, outer card, Certificate of Origin, setting tool, brochures, original 18K rose gold folding clasp and spring bars Footnotes: The Reference 7175 was made in 2014 to celebrate the 175th Anniversary of Patek Philippe. It was launched as part of a 'his and hers' set of World Time references with the 5575 forming the other half of the pairing. Whilst the 5575 was limited to 1300 pieces, the 7175 was produced on an even smaller scale of just 450 pieces and was available exclusively in rose gold. It is this rose gold combined with diamonds and a centred moon phase that makes this model such an exquisite timepiece to behold exuding pure class. Housed within this reference was the new Cal.240 HU LU explicitly developed to achieve a smooth synthesis between the world's 24 time zones and the lunar cycle. To acknowledge Patek Philippe's heritage, Central European Time is represented by the city of Geneva. Patek Philippe first employed the World Time complication in its wristwatches during the 1930s, when the complication was first invented by Swiss watchmaker, Louis Cottier (1894-1966). Cottier's classic World Time wristwatch depicted 24-time zones simultaneously, with the local time zone of the wearer controlled through a pusher in the case whilst automatically correcting the position of the 24 hour dial. This lot is subject to the following lot symbols: Ω Ω VAT on imported items at the prevailing rate on Hammer Price and Buyer's Premium. For further information on this lot please visit Bonhams.com