Wenger and Victorinox are two completely different companies that fight for sales each year. They are on opposite sides of Switzerland, and they even speak different languages.
Victorinox uses flat springs on all of their tools, while Wenger uses a bar that receives power off of the backspring. Wenger also has "toothed" scissors and a locking flat screw driver that is pattented. The can opener on Wengers is of a traditional style in which you pull towards yourself, while Victorinox has an opposite style that you push away with. The later leaves a less toothy edge on the can lid. Victorinox's are longer and the QC and fit and finish is #1. Wenger has alot of pattented great ideas, but I like them a lot less. I own both, and always go back to the Victorinox, which, by the way, was named after the founders mother "Victoria" and their word for stainless "inox" thus, Victorinox.
The only large Wenger model I could find is the Tool Chest Plus with these features:
The Tool Chest Plus includes:
Large blade, Scissors, Cap lifter, Locking screwdriver, Wire stripper, Posi-drive® screwdriver, Magnifier with precision screwdriver, Nail file, Corkscrew, Can opener, Toothpick & Tweezers, Slip-joint pliers, Wire crimper, Wire cutter, Reamer/Awl, Metal file, International wrench, Wood saw, Hook disgorger/fish scaler, Line guide, Compass/Ruler, Ring w./short chain
The Swisschamp has fewer tools, but is thinner and equally useful, in my opinion.
These two companies have fought tooth and nail for specific rights concerning who was first, blah, blah, blah...
The outcome, Wenger is the "Genuine" SAK, and Victorinox is the "Original" this pleased both parties
Above is the Wenger and below is the Victorinox.