Right Time to Buy a Sub? Old Movement?

[youinthehat]

Okay, so I was thinking.

When exactly is the right time to buy a sub?

I ask because while I was watch shopping, I seen a lot of mentions of the omega caliber 8500.

That got me think, okay, so rolex has been using the same (or at least same but tweaked) movement for 20+ years. Aren't they going to be updating it soon?

The reason this crossed my mind is because I would honestly have pretty bad buyers remorse if I buy the watch and they come out with this new fantastic, state of the art movement, 2 years later.

It being 20 years already, it makes me assume that we're more likely to see a new movement than another 20 years of the same movement.

I know as long as the watch works, its fine but I would still hate to have an outdated model so soon. Kind of like buying a car one year before they go with a visual and engine refresh.

Thoughts?