Don't do it. You'll never enjoy it.

Part of having a nice watch is they kind of have a soul. I love the Carrera I got for my 21st last year. I will keep it and love it for life. I also find the mechanical movements super neat (especially on watches with a clear case back and you can see it).

Save up and get the real thing if you really want it. It'll be something you'll enjoy for years.

Plus getting 25% off the retail price isn't unhead of.

Or look up ROLEX OMEGA PANERAI CARTIER watches by Nicholas Hacko, watch dealer Sydney - Australia , he sells second hand watches (mostly rolexs, mmm submariner ) but gets plenty of Omegas/Tags and many other brands too. Subscribe to his newsletter, lots of the stuff sells before it hits the website.