Reach a higher altitude in style and performance with mission-ready flair inspired by the sikorsky s-70 helicopter. 42. 4mm stainless steel case and knurled crown on its dark gray dial, a time-and-date configuration works alongside an outer professional-grade scale with white and yellow accents sustainably powered by any light with proprietary eco-drive technology that never needs a battery interchangeable black polyurethane strap with buckle clasp water resistant to 200 meters caliber b877