Men's Citizen watch with BU2021-51L article number. Features include stainless steel case and bracelet, fixed bezel, rotating inner ring, dark blue dial featuring luminous silver-tone hands and index hour markers (including day/night hand), analog display, 24 world time cities capability, outer minute/24-hour markings, date function at the 3 o'clock position, three multi-function sub-dials for hours, seconds and day of the week indication. Powered by Citizen's Eco-Drive movement model 8729 (solar powered), scratch-resistant mineral crystal, pull/push crown, solid case back, dimensions: case size 44mm, thickness 8.5mm, band width 23mm, length approximately 8 inches with deployment clasp. Water resistant up to 100 meters / 330 feet.