Hi all,

Hopefully someone can enlighten me on this. What is there to prevent someone from dropping a Speedmaster Mark II movement into a 145.022-7x or -69 case, and try to sell it as such? Aren't they pretty much the same movement with similar range which can then be interchanged?

Though of paying a lump sum for a 1969-71 speedy, and when the papers come back it says a Speedmaster Mark II scares me.

 

Look at the movement on this. I dont see any movement with rounded screw heads except one on a Mark II.

http://www.chrono24.com/en/omega/sp...st&dosearch=true&urlSubpath=/search/index.htm

 

DeVilles and Seamasters as well. Welcome to the jungle.

 

If you can, get the extract first.

..but you might miss out on some watches...

 

Think that is bad. How about a Seamaster 2907-2 321 movement into your $150,000 Speedmaster 2915-1 ?

 

Man, that is just plain depressing right there.

 

I didn't even change the dial...

 

I would think its like an engine from a mgb and putting it into a mgb gt. It's the same engine different body.

 

Yep. U snooze or hestitated u lose. Like I did on a ST 71 today.

 

Indeed, especially with so many 321 movements of that era ''without extracts"

 

If you are suggesting any 861 with rounded screw heads is from a Mk. II then that's false. The flat or rounded screws depends more on the age of the watch and really isn't related to what the case reference is.

Cheers, Al

 

Do you know when they switched to the rounded screw head? Or under what circumstances would a movement have the round screw head? Just trying to learn....

 

I haven't studied this as I didn't believe people were being quite this obsessive yet...guess I was wrong on that one!

But from casual observations, it would have been in the early 70's that the change happened. So my own watch, from 1971 has flat headed screws for example. I think if you are looking for some hard and fast rule, you might be disappointed...

Cheers, Al