Master monochromatic style with the “blackout” nighthawk. The sporty design will strike up a conversation with its distinctive look in all black ion-plated stainless steel and advanced features. 42mm black ion-plated stainless steel case black dial with chronograph sub-dials and luminescent hands and markers mineral crystal features include 1/5-second chronograph that measures up to 60 minutes, 12/24 hour time and a tachymeter that measures speed based on time traveled over a distance sustainably powered by any light using eco-drive technology black ion-plated stainless steel bracelet; push-button fold-over clasp 200-meter water resistance caliber b612