Take to the skies and look stylish on land, too – with the innovative Promaster Air men’s chronograph watch from Citizen. This exceptional, pilot-inspired watch features a black stainless steel case accented by a blue ion-plated rotating bezel with a professional calculator function and tachymeter on a blue dial with luminous hands and markers and a sapphire crystal. The advanced technology of this timepiece incorporates atomic time clock synchronization for superior accuracy, a 1-second chronograph that measures up to 60 minutes, and a perpetual calendar. The black polyurethane strap fastens with ease and like other watches in the Promaster line, it is water resistant up to 200 meters. This sporty, high-performance watch utilizes Eco-Drive technology that’s sustainably powered by any light and never needs a battery. Movement Technology E660 Eco-Drive Powered by any light source, continuously and sustainably, eliminating the need to replace watch batteries. Case Width 46 mm Lug Width 26.48 mm Band Type Strap Polyurethane Case Material Black Stainless Steel Crystal Sapphire Crystal Superior scratch resistance and hardness Clasp Safety Fold-Over Clasp with Push Buttons Dial Blue Luminous Hands and Markers Water-Resistance WR200/20Bar/666ft [Swimming, Showering & Snorkeling] Additional Functions Synchronized to Atomic Time Clock for Superior Accuracy Atomic Timekeeping Technology with Synchronized Time Adjustment Available in 24 Time Zones, 1 Second Chronograph Measures up to 60 Minutes, Perpetual Calendar,12/24 Hour Time, Alarm, Power Reserve Indicator, Day / Date