Distinctive in form and uncompromising in function, the promaster air skyhawk a-t delivers a bold take on advanced aviation watchmaking. Black dial with multi-function display 46. 0mm light gold-tone ion-plated stainless steel case; tachymeter bezel sapphire crystal sustainably powered by any light with eco-driveâ® technology that never needs a battery gold-tone stainless steel bracelet with fold-over clasp water resistant to 200 meters caliber u680 limited to 5,200 unnumbered pieces worldwide we are an authorized citizen dealer