Citizen BU2070-12L Men’s Corso Eco-Drive Brown Leather Strap Watch. Eco-Drive movement (recharged by any light source, no need to change battery). Caliber 8729. Stainless steel case. Brown leather strap. Blue dial with luminous hands and markers. Three sub-dials displaying: date, day of the week and 24 hour. Sapphire glass. Water resistance: 100-meters. Approximate case diameter: 44mm. Approximate case thickness: 12mm.