Need some advice on a vintage speedmaster

Hi all,
I am a budding omega enthusiast with a love for the vintage speedmasters. I recently have compiled a list of a few on Chrono24 that I am thinking of purchasing.
Here they are.
1. https://www.chrono24.com/watch/RCED53
2. https://www.chrono24.com/watch/NDJ3C7
3. https://www.chrono24.com/watch/OFE4R9
Thanks for the help!!⌚️

Welcome!

As this forum thrives on the collective goodwill, shared expertise, and donated time of its members, we encourage you to undertake as much preliminary research as possible before requesting assistance.

In short: ensure that helping you is not an arduous task for others.

To receive the best response, please follow these guidelines:

1. Introduce yourself: A touch of courtesy goes a long way in fostering a helpful environment.
2. State your objectives: Clearly explain your current interests or the specific information you are seeking.
3. Provide context: Post images, pricing details, and, most crucially, your own observations. Please provide this information directly rather than posting external links.
4. Offer your thanks: Gratitude is the currency of our community.