The Citizen Eco Drive Ecosphere watch is powered by light, which means there will never be a need to change the battery. The slick black and gunmetal grey colours on this watch create a very masculine and edgy design; the case depth measures approximately 12mm meaning the face will sit proud and easily catch the eye. The large round dial measures approximately 50mm including the dials on the right hand side, these dials activate the chronograph on the watch. The hands and the marker at the top of the dial are luminous; this allows the time to still be read during low lighting conditions and in the dark. There is a tachymeter and a date window that feature on this Citizen watch as well, with many functions and a detailed dial, the watch has a sporty appearance, this is also added to by the silicone strap. The strap is smooth and comfortable to wear; it is easily adjusted in length and secured in place by a simple black buckle. Citizen Eco Drive watches are provided in the official branded packaging and come with a five year Citizen guarantee. Chapelle offer a minimum of 30% off the RRP of every Citizen watch and are authorised stockists. Chapelle reference 08540240.