Designed for aviation enthusiasts, the Promaster Sky detailed aesthetic features a rotating slide rule and a high visible dial with 8 arabic numbers and luminous hands and markers for night visibility. Equipped with Citizen core Eco-Drive technology, allowing the watch to generate energy from both sunlight and indoor light thus ensuring constant battery. Additional features include dual time functionality, date, 12/24 hour time display and water resistance up to WR200/20 bar suitable for swimming and snorkelling activity. The classic black dial and grey stainless steel case are showcased with a military green calf leather strap complemented with contrasting orange accents on the strap and dial. 42.5mm case. Calibre B877.