Grand­mas­ter Chime Ref 5175 (2014)

Adore Gems & Timepieces - - FEATURE -

Patek Philippe’s most com­pli­cated wrist­watch

Price: CHF2.5 mil­lion

Patek Philippe has played a lead role in the last 175 years of Swiss watch­mak­ing his­tory. And to com­mem­o­rate this mile­stone, it in­tro­duced a col­lec­tion of lim­ited edi­tion an­niver­sary watches in 2014, in­clud­ing the star piece: The Grand­mas­ter Chime Ref 5175, one of the world’s most com­pli­cated time­pieces. It holds six dif­fer­ent patents, is Patek Philippe’s first dou­ble-face re­versible wrist­watch and sports a 47.4-mm rose gold hand-en­graved case that can be worn with ei­ther dial fac­ing up. One dial side fo­cuses on the time and the son­nerie, while the other show­cases a full in­stan­ta­neous per­pet­ual cal­en­dar with a four-digit year dis­play. Chang­ing the face is in­cred­i­bly straight­for­ward, thanks to a clever re­vers­ing mech­a­nism in the lugs of this user-friendly time­piece. This highly com­plex 1,366-part man­u­ally wound move­ment is pow­ered by four spring bar­rels and boasts 20 com­pli­ca­tions, in­clud­ing grande and pe­tite son­ner­ies, a minute re­peater, a sec­ond time zone with day/night in­di­ca­tor, power re­serve in­di­ca­tors, moon phase dis­play, three strike­work dis­plays and two patented world pre­mieres: A time-strik­ing alarm and a date re­peater that sounds the date on de­mand. A prod­uct seven years in the mak­ing, it re­quired more than 100,000 hours for de­vel­op­ment, pro­duc­tion and assem­bly, of which 60,000 hours were de­voted to the move­ment com­po­nents. Only seven time­pieces will be made, with one des­ig­nated for the Patek Philippe Mu­seum.

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