Soar to new heights with the flight-inspired Nighthawk, which exemplifies the current "blackout" aesthetic. This 1/5 second chrono measures up to 60 minutes, with 12/24 hour time & tachymeter. Shown in a 42mm stainless steel black ion plating with screw-b Soar to new heights with the flight-inspired Nighthawk, which exemplifies the current "blackout" aesthetic. This 1/5 second chrono measures up to 60 minutes, with 12/24 hour time & tachymeter. Shown in a 42mm stainless steel black ion plating with screw-back case and bracelet with safety foldover clasp with push button, Nighthawk is also 200M WR. Featuring our Eco-Drive technology – powered by light, any light. Never needs a battery. Caliber number B612.