TF IWC Portuguese Tourbillon Reverse Series, equipped with a customized version of IWC Auto 51900 automatic true tourbillon movement

TF IWC Portuguese Tourbillon Series Equipped with a customized version of the IWC 51900 automatic true tourbillon movement, which achieves the same original version of the calendar flyback and the true function of the 3-digit power reserve display. Equipped with an American alligator leather strap