The Citizen Promaster Land CB5039-11L is a high-performance chronograph watch designed for adventurers and outdoor enthusiasts. This rugged timepiece boasts a durable stainless steel case, a blue dial with contrasting sub-dials, and a rotating slide rule bezel for complex calculations. Powered by Citizen's Eco-Drive technology, this watch never needs a battery change, as it's fueled by any light source. With its 200-meter water resistance and sapphire crystal, the CB5039-11L is ready for action both in the air and on the ground.