Brand Patek Philippe Model Calatrava Reference  3919 Case Size and Material 33.5mm / Yellow Gold  Bracelet Style and Material Black Leather Strap w/ Yellow Gold Buckle Dial White Dial with Roman Hour Markers Bezel Yellow Gold  Movement Manual Winding Movement Power Reserve N/A Water Resistance No Crystal Scratch Resistant Sapphire Crystal Condition Preowned; Great Condition; Minor Strap Wear Box Patek Philippe  Papers No Year or Est. Production N/A Internal Sku 590-15517 Included Warranty Happy Jewelers 2-Year Limited Warranty Appraisal  Included in boxÂ