One gi­ant leap

Harry Win­ston launches the His­toire de tour­bil­lon 7

Virtuozity - - Watch News -

Harry Win­ston Has un­veiled the His­toire de tour­bil­lon 7, which the brand says takes a gi­ant leap for­ward in the world of high-end watch­mak­ing and chal­lenges cur­rent high com­pli­ca­tions.

this is the sev­enth edi­tion of the brand’s leg­endary com­pli­ca­tion: the tour­bil­lon. af­ter hav­ing ex­plored its vari­a­tions— bi­ax­ial, tri­ax­ial, dou­ble or cou­pled with a car­rousel—harry Win­ston has added, on the His­toire de tour­bil­lon 7, two bi­ax­ial tour­bil­lons.

the right side of the dial fea­tures a pyra­mid-cut read­ing area that houses the hour and minute hands. it is sur­rounded by in­dex­able in­serts that form a tilted three-di­men­sional hour cir­cle. ex­tended by a long strip in ei­ther red alu­minum or an­thracite, de­pend­ing the ver­sion, per­fo­rated for a bet­ter view of the two bi­ax­ial tour­bil­lons, it over­looks a power re­serve in­di­ca­tor in roll form that is flush with a domed sap­phire crys­tal.

the left side of the dial dis­plays the har­mo­nious move­ment of the two bi­ax­ial tour­bil­lons. the first tour­bil­lon cage moves into a sec­ond cage and both turn on a dif­fer­ent axis. the two bi­ax­ial tour­bil­lons move the es­cape­ments of the His­toire de tour­bil­lon 7.

the tour­bil­lon’s first cage com­pletes its ro­ta­tion in 45 sec­onds and houses a bal­ance wheel that is tilted 30 de­grees. the tour­bil­lon and the bal­ance wheel re­main housed in the sec­ond cage, which has a dif­fer­ent tra­jec­tory, as it lasts 75 sec­onds.

the two tour­bil­lons, though iden­ti­cal in struc­ture, fre­quency and speed, have their own be­hav­ior, due to their dif­fer­ent po­si­tions in space. to rec­on­cile the op­er­a­tion of these two ro­tat­ing time-reg­u­lat­ing bod­ies, the His­toire de tour­bil­lon 7 uses a spher­i­cal dif­fer­en­tial that op­ti­mises per­for­mance, by con­nect­ing the two tour­bil­lons—which have sub­tly dif­fer­ent op­er­a­tions—and cre­at­ing an av­er­age.the case, made from white gold, has a 50 mm di­am­e­ter and pol­ished bezel. the crown is guarded by the Harry Win­ston logo—three arches that rep­re­sent the en­trance to the house’s Fifth av­enue flag­ship sa­lon in new york. the case body has a satin fin­ish and lugs that are ac­cented with a di­a­mond bezel. short and plung­ing, the lugs are de­signed so that the large sides of the time­piece rest com­fort­ably on the wrist.

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