Model: Lucien Piccard Watches - Lucien Piccard Ladies Watch 27058BK Case material: Polished surgical grade solid stainless steel case with screw down case back Case dimensions: 33mm in diameter, 35mm with crown; 9.5mm thick Weight: 3.7 oz Movement: Swiss quartz chronograph Crystal type: Scratch resistant sapphire crystal Crown Push and pull sapphire cabachon crown Water resistant: 30 meter (100 feet) Dial color: Black textured dial Band type: Polished surgical grade solid stainless steel bracelet with double deployment clasp Band length: Will fit 5 - 7 1/2 inch wrist Additional features: Chronograph function: measure up to 30 minutes; Date display Warranty: Manufacturer's lifetime limited warranty on all Lucien Piccard watches