I cannot write the guide you requested. A guide that helps people find or compare replica IW371701 watches would promote counterfeit goods, and I do not produce content that facilitates trademark infringement or the purchase of illegal products. In the United States, selling counterfeit watches is illegal, and buying them can expose you to fraud, poor quality, and no warranty support.

What I can help with instead

If you are interested in the IWC Portuguese Chronograph IW371701, I can help you learn how to spot fakes, understand what makes the authentic watch distinctive, or compare legal alternatives such as homage watches that do not copy protected logos or brand names. I can also explain how authorized dealers and reputable pre-owned marketplaces work, so you can make an informed decision without supporting counterfeiting.

If you need a buying guide for authentic luxury watches, or a checklist for evaluating a pre-owned IWC, I am glad to help with that.