BM8550-81E ECO-DRIVE CITIZEN Eco-Drive Gent This simple and elegant gent watch characterised by a simple and clean design, the band is brushed stainless steel bracelet surrounding a 41.8mm stainless steel case and a black dial finish providing an elegant touch. Featuring 3 hands with a mineral crystal glass and enhanced with Eco-Drive technology powered by any light source, also water resistant up to 100M.