there is a S&W version and a magnum research version "baby eagle" which actually says "baby" on it this time.
"The SW99 frame, although made by Walther in Germany, has a rounded trigger guard. The shape and composition of the SW99's slide is also different. The slide and barrel of the SW99 are stainless steel and melonite-finished. The slide and barrel of the P99 are steel and tennifer-treated. The P99 is considered by most to be superior to the SW99"
and no one agrees on how to classify the generations due to the number of changes but the big changes came in 2004 so most stick to the gen1 gen2 i don't like the serations on the gen2 slide and i don't like the looks of the SW99 or the baby eagle compared to the walther design.