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Portugieser Perpetual Calendar
THE WORLD’S MOST PRECISE LUNAR PHASE WRISTWATCH: THE IWC SCHAFFHAUSEN PORTUGIESER ETERNAL CALENDAR NOW HOLDS THE GUINNESS WORLD RECORDS
ElleMaraa
يونيو 30
The newly introduced Portugieser Eternal Calendar has been officially recognised by Guinness World Records as the “most precise lunar phase wristwatch”. With a theoretical deviation of just one day in 45,361,055 years, the Double Moon™ ...
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