My advice...
For the first watch of your future collection; Reach for the stars my friend, buy a pre-owned 'mature' masterpiece. You enjoy what you have on your wrist because What it is, not how old it is.
Drop by Chrono24 (or similar), insert your budget and choose from any number of renowned brands, such as Rolex, IWC, Zenith, Breitling, Omega (high end), or practically any brand you can think of...
Personally, if I was starting over with the same budget...I'm torn between a lovely Omega Planet Ocean co-Axial Chrono or a beautiful IWC Fliegeruhr Chronograph.
Nobby
Good hunting
Nobby