question for the experts?

Does the GMT hand have a separate wheel to which it connects?

Any ideas where i can buy that GMT wheel?

I bought a Seiko 6117 world time online and when my watchmaker checked it, he found the GMT hand broken (was able to find one easily on ebay) and a missing GMT wheel (hence, this post).

Thanks as always.

 

This is what the watch looks like

 

I've got one apart at the moment, can't look at it until tomorrow though.

 

The 24 hour wheel part number is 278612.

 

Thank you very much sir.

 

I suppose this is it?