Seiko 5 Sports Limited Addition Automatic SSA315 SSA315K1 SSA315K Men's Watch Features: Titanium Carbide Plating Stainless Steel Case Titanium Carbide Plating Stainless Steel Bracelet Automatic Movement Caliber: 4R37 24 Jewels Hardlex crystal Black Dial Luminous Hands And Markers Power Reserve 24 Hours Indicator Date Displays Screwed Case Back Deployment Clasp 100M Water Resistance Approximate Case Diameter: 44.5mm Approximate Case Thickness: 12.9mm