Citizen Promaster x Navihawk ft. Air Series Men Formal Round 200m Water Resistant Watch CA4660-61A CA4660 CA-4660 Explore the Promaster Air Navihawk, an aviation-inspired timepiece with advanced technology and a striking design. Its 40mm silver-tone stainless steel case features sharp faceting and a satin finish, along with a functional slide-rule scale on the bezel. The highly legible dial, protected by sapphire crystal, showcases red, black, and white accents and offers 200m water resistance. Caliber Number / Movement B620 (solar Eco-Drive) Power Reserve / Accuracy Approximately 9 months when fully charged (+/-15 seconds per month) Crystal Sapphire crystal (anti-reflective coating) Luminous Luminous on hands and indexes Case / Band Material Stainless steel case with stainless steel band (three-fold clasp with push-button release) Water Resistance 200m / 20 bar Case Size Diameter: 40.0 mm Other Specifications Citizen Promaster x Navihawk ft. Air Series Bidirectional rotating bezel (time, speed, distance calculation and conversions) Screw case back Date and 24-hour display Insufficient charge warning function Overcharge prevention function Chronograph up to 60 minutes in 1/5-second increment Equipped with small second hand Regular timekeeping (analog display)