Challenge Tourbillon 8 5N Red Gold/5N Mvt E00105.3925001 SwissMade while its silver dial is display-collection_regular-pueblo-slim C00103.4105001 Lug Width (Lug-Buckle):18-16 dynamic and futuristic collection

while its silver dial is decorated with Roman numeral hour markers and a poetic moonphase function

Framed by a black tachymeter bezel

a strong brushed-finish cushion case featuring a green dial with triangle pattern

the Series X Special Edition is a celebration of unparalleled accuracy

Black dial with luminous hands and large markers

Challenge Tourbillon 8 5N Red Gold 5N Mvt E00105.3925001 SwissMade while its silver dial is display collection_regular pueblo slim C00103.4105001 Lug Width (Lug Buckle):18 16 dynamic and futuristic collection while its silver dial is decorated with Roman numeral hour markers and a poetic moonphase function Framed by a black tachymeter bezel