Style meets function in the Citizen Nighthawk with a sporty appeal. Designed with a granite ion-plated stainless steel case and bracelet with a charcoal gray dial with red accents, the advanced features include a 1/5 second chronograph that measures up to 60 minutes, 12/24 hour time, and a tachymeter that measures speed based on time traveled over a distance. This must-have men’s watch also features a screw-down crown, a safety foldover clasp with push button, and water resistance to 200 meters. Made with our proprietary Eco-Drive technology that’s sustainably powered by any light and never needs a battery, this versatile men’s watch becomes your weekday to weekend wardrobe staple. Caliber number B620. Included: 1 Watch(es) Features: Water Resistant, Quick Ship Jewelry Closure: Fold Over Clasp Power Source: Ecodrive Watch Movement: Quartz Water Resistance: 200m Band Color: Gray Dial Color: Gray Metal Color: Gray Case Thickness: 12.9mm Case Width: 45.5mm Watch Band Length: 8 Inch Band Content: Stainless Steel Case Materials: 100% Stainless Steel Band Width: 23mm Care: Wipe Clean Country of Origin: Imported Quick Ship items ship directly from the manufacturer within 3 to 5 business days. Photos are enlarged to show detail.