Citizen Eco-Drive™ FAQ Watch Sizing Guide Class, style, and grace come together with the Citizen Watches® Corso. Round stainless steel gold-tone case. Stainless steel two-tone link bracelet. Fold-over clasp with double push-button release. Three-hand analog display with quartz movement. Using the most advanced technology in watch making, the Eco-Drive Perpetual Calendar never needs a battery. Black sunray dial features stick index hour markers at 12, 3, 6, and 9 o'clock, diamond hour marker accents, date display window, and brand name. Water resistant up to 10 ATM/100 meters. Presentation box included. Imported. Citizen Watch offers a five-year limited manufacturer's warranty on all their products. For more information, please visit their website and see the "Service Information" section. Measurements: Case Height: 40 mm Case Width: 40 mm Case Depth: 9 7⁄10 mm Band Width: 19 9⁄10 mm Band Circumference/Length: 9 1⁄2 in Weight: 4.8 oz