IWC, Pilot Series, Model: IW389108, rare Pilot Black Ceramic Tophatters" Little High Hat "Special Edition, 44.5mm case diameter, complete set, 99% new condition, the case is made of black ceramic, lightweight and wear-resistant, the digital hour markers are clear and easy to read, luminous indication, three-sub-dial chronograph function, practical dual calendar display, date and day of the week in prominent red font.