Luminox Men's Field Series 1800 Automatic Brown Genuine Leather Black Dial Stainless Steel Case with Genuine Buffalo Leather Strap Sapphire Cyrstal, Day/Date Display, Long Lasting Tritium Luminous Hands and Markers Case Size: 43mm Diameter, 13.75mm Thickness Water Resistant - 100M, Screw Down Crown and Transparent Case Back Movement: Eta 2878 Automatic-Day/Date