Citizen's Promaster Land watch is perfect for high-speed adventurers and has all the tools for the toughest terrain. Featuring a silver-tone 45mm case and green dial, and advanced features such as atomic timekeeping with synchronized time adjustment in 24 cities worldwide, power reserve indicator, luminous hands and markers, alarm, a chronograph and a perpetual calendar. This timepiece is powered by Eco-Drive – the sustainable way to power your watch – with light. No batteries required.