Yes, Hammitt is legit. Hammitt is a company that's existed for decades and has no complaints on the internet. They offer high-quality items with excellent customer service. Numerous satisfied customers have given positive reviews of their products and services. Plus, they have several positive reviews. You can't find many negative reviews or failed customer experiences online.
Online reviews and feedback can be a great way to understand what other people think about a particular company or product. In this case, there are no complaints or bad reviews whatsoever about Hammitt, which should give you the idea that they are not scammers and have been around for decades. All of these point to them being a legitimate company doing everything they can to make sure their customers are happy.