Brand New Authentic Longines Master Collection Automatic 40mm Day-Date Blue Dial Leather Strap Men's Fashion Watch Model L2.910.4.92.0. Polished Stainless Steel case with Polished Stainless Steel strap. Polished Stainless Steel Deployment with Push Button and Foldover clasp. Fixed bezel. Dial description - Polished Silver Tone Hands and Stick Hour Markers with Minute Markers Around the Outer Rim on a Blue dial. Swiss Automatic movement. Chronograph sub-dials display - Date. Calendar - Month and Date at 3 o'clock. Powered by Longines Caliber L897 engine with 64 hours power reserve. Watch functions - Date, Power Reserve, Hour, Minute, Second. Pull/Push crown. Scratch Resistant Sapphire crystal. Round case shape. Case size - 40mm. Case thickness - 9.50mm. Transparent case back. 30 Meters - 100 Feet water resistant. 2-year WatchMaxx warranty. Also known as model - L29104920.