A sportier take on the popular H800 caliber, the Citizen Eco-Drive Radio Controlled World Time Chronograph is loaded with functions like atomic timekeeping for the most accurate time and synchronized time adjustment available across 26 different time zones. Other advanced features include a 1/20-second chronograph for up to 60 minutes, a Perpetual Calendar with a Day and Date indicator, a tachometer, a power reserve indicator, a sapphire crystal, and water resistance up to 200 meters (666 feet). This silver-tone, stainless steel watch with a black dial is a men’s timepiece that can seamlessly move between business and leisure. Powered by Eco-Drive- the revolutionary light-powered movement from Citizen, this watch can continuously recharge in any light source and can run for a minimum of six months even in the dark without any charge. This revolutionary earth-friendly technology eliminates the need to change the battery frequently and gives you hassle-free timekeeping, never disappointing you when you need it the most. The Eco-Drive movement also comes with a built-in Insufficient Charge Warning Function and Overcharge Prevention Function.