Challenge Tourbillon 8 5N Red Gold/5N Mvt E00105.3925001 SwissMade Black dial with luminous hands SPB121 Lug Width (Lug-Buckle):20-18 this versatile timepiece displays Hours

Black dial with luminous hands and large markers

The Quantum Duo will keep your two watches ticking and in pristine condition when you're not wearing them

ETA/Unitas Calibre 6497/8 Swiss Mechanical Manually Wound Movement Features 17-Jewels and Incabloc Novodiac Shock Protection

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

regulated by a Nivachron spiral has exceptional non-magnetic capacities

Challenge Tourbillon 8 5N Red Gold 5N Mvt E00105.3925001 SwissMade Black dial with luminous hands SPB121 Lug Width (Lug Buckle):20 18 this versatile timepiece displays Hours Black dial with luminous hands and large markers The Quantum Duo will keep your two watches ticking and in pristine condition when you're not wearing them