Orient #CEM60001B Men's Duty Day/Date 50M Self Winding Automatic Watch Orient 21 Jewels Self-Winding Automatic Movement, Oscillation Frequency: "21,600 oscillations per hour (6 beats per sec)" Stainless Steel Case and Band with Push Button Deployment Clasp Mineral Crystal, Day/Date Display with Spanish Option, Rotating Inner Bezel, Push Button Day Operation Case Size: 41mm Diameter, 11mm Thickness Water Resistant - 50M, Screw Down Caseback