Citizen is the pioneer of Atomic Timekeeping watches. They launched their first multi-band of this kind in 1993. Part of that innovation is its AT4010-50E men’s watch from their Eco-Drive collection. It can be powered by any light source and controlled by radio signals to provide accurate timekeeping. It has chronograph functions and a perpetual calendar. Its casing and band are made of a very strong and durable material – titanium. It has a black dial that suits perfectly with its silver-toned hands and markers. It is stylish, elegant, and timeless. If you are looking for a timepiece that can last a lifetime, this deserves your attention.