Orient #FEM5M010B Men's Tri Star Black Dial Standard 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 Fold Over Deployment Clasp Mineral Crystal, Day/Date Display with Spanish Option, Gold Tone Hands and Markers Case Size: 37mm Dimaeter, 11 mm Thickness Water Resistant - 30M, Screw Down Caseback