Authentic Used IWC Portuguese Chronograph IW3716-17 Watch (10-10-IWC-B6XEPM)
WTS] IWC Portuguese Chronograph - New In-House Movement - Blue Dial - On Rare SS Bracelet - Ref# IW3716-06 - Full Kit (My -Almost- Dream Watch) : r/Watchexchange
IW371616-Portugieser Chronograph
IWC Portuguese Chronograph Stainless IW3716-05 Steel White | eBay