GREUBEL FORSEY
QP à Équation , 5N Gold
Greubel Forsey debuts a 5N gold version of its QP à Équation , an ultra-complicated timepiece with complete perpetual calendar , tourbillon and equation of time function . The watch , which was awarded the Grand Prix d ’ Horlogerie de Genève award for the best Calendar in 2017 , utilizes a type of ‘ mechanical computer ’ to manage all the changes in the displays .
This ‘ computer ,’ Greubel Forsey ’ s seventh invention , is an entirely integrated twenty-fivepart component composed of a stack of cams with movable fingers that shift the indications on the dial and caseback . The month ’ s cam changes the month ( seen on the front of the dial ) and also moves the Equation of Time disc on the back . The years ’ cam controls the leap year indication ( front ) and also the year and seasons on the back .
In summary , the dial side , now brown-colored , displays the 24 hours of the day and night , the day of the week , the large date , the month , the hours and the minutes ; the movement side shows the equation of time and the seasons and the year . Price : $ 695,000 .
IW RATING
Design : 9 ( out of 10 ) Original displays and case combine with style .
Innovation : 9 Multiple indications and high-concepts expertly meld .
Finissage : 9 Some of the best we ’ ve seen .
Legibility : 8 Depends on your familiarity with this brand .
Rarity : 9 Very few will be made .
Value : 9 Pricey , but likely will hold value .
Overall iW rating : 53 ( out of 60 )
28 | INTERNATIONAL WATCH | FALL 2020