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. Product details: Movement: Eco-Drive Band: Stainless Steel Case Size (mm): 42 Crystal: Mineral Crystal Water resistance: 20 bar Additional functions: 1/5 Second Chronograph Measures up to 60 Minutes 12/24 Hour Time Date Warranty: 5 years Limited Manufacturer Warranty