Start with basic and narrow down from there.
1- what do you like about the watch? The looks, the history?
2- let's say you want the historic value of the model to carry on into your piece. what is your lifestyle? Can you handle a vintage and the money and care they need? As much as you like purity can you handle a manual watch versus and automatic? Accept that in either case you have a watch that is not quartz and that will have variances in time etc. If you decide you want history then start at the beginning. Pre moon, moon, transitional. You will slowly find the piece that meets look and budget.
Conversely you may decide that you want all that but your watch has to be reliable and modern and have water proof capabilities, then you start looking closer in dates and budgets....
Or you may say " I just need a nod, a wink of respect towards the history but I rather have an automatic with Saphire case back, or blue, or orange, or a dark side or gray side etc....
While you do this browse the sales section here and elsewhere and do searches for the models that catch your attention. Wjat makes this one different or more appealing? Why is that one so expensive? Why does
@ulackfocus prefer the quartz movement ( what does he know we don't)
By the time you finish answering these questions you will be a speedy aficionado and you will be ready to ask yourself and others the right questions and understand the answers. Then you're ready to buy... But wait , what's that? A seamaster what?
And start over.
4 to 5 hours of browsing will get you much further than you may think.....although I'm assuming you're a millennial which means 4 to 5 hours focused work probably will feel like a year.
Have fun