An eye-catching dark-blue dial and polished, silver-tone indices give cool, confident appeal to the Citizen Men's Eco-Drive Sport Watch #BL5370-51L. Three subdials, a date calendar at four o'clock, an alarm, and a tachymeter give you plenty of ways to keep on track. The watch also sports a stainless steel, silver-tone unidirectional rotating bezel, which features luminous dot and engraved numbers and markers. A polished stainless steel case and bracelet finish the watch's classy look. A fold-over push-button clasp with safety keeps the watch secure. As an Eco-Drive, this sports watch is powered by light--both natural and artificial--offering continuous functionality without a battery. It is water resistant to 666 feet and is backed by a five-year limited manufacturer's warranty.