Hello, does anyone have specific knowledge regarding the specific difference between, Type A, Type B, and F8's are?  While I like the history of Wat's and general statements like, "its a different type of offset" im looking for more specific information.  I have seen several wheels that have been painted over and the factory markings have been lost over time or possibly sanded away in previous restorations.  Please advise what the difference is between the wheels.  

We can leave out type R and type RS, as these are obviously different looking from the other wheels (in my opinion) 

 

with gratitude, 

Izzy

From what I get on their website

http://watanabe.polyhedron.io/

The F8's sound like they're front wheel drive maybe. the A's are aluminum and the B's are magnesium.

thanks, it looks like they offer type a and b in both magnesium and aluminun.