Climb to new heights with CITIZEN®'s reinvented PROMASTER Altichron. Shown in a stainless steel case with a black ion plated bezel and a green nylon strap, this timepiece features an altimeter measuring from -1,000ft to 32,000ft, an electronic compass, a power reserve indicator, a rotating compass bezel, a screw-back case, and an anti-reflective crystal. Featuring our Eco-Drive technology – powered by light, any light. Never needs a battery. Water resistant up to 200 metres.