The Jumpmaster is a 111mm four-layer Victorinox model that is almost identical to the Fireman, just exchanging the corkscrew for a Phillips screwdriver.
It is intended for rescue workers, or anyone needing an emergency/belt cutter blade.

Retired Model

Layer Tools

• Large locking blade
• Emergency/belt cutter blade with blunt tip
• Wood saw
• Bottle opener with large locking screwdriver and wire stripper
• Can opener with small screwdriver tip

Back Layer Tools

• Awl / Reamer
• Phillips screwdriver
• Keyring

Scale Tools

• Toothpick
• Tweezers

Scales 

Black Nylon

History 

This knife is retired presumably because it is superseded by the Rescue Tool

Identifiers 

• 0.8483.3: Black Nylon scales (US Model Number: 53846)

Related Models

• Fireman - Replaces the Phillips screwdriver with a corkscrew
• Rescue Tool - Replaces the wood saw with a glass cutting "disc" Saw; replaces the can opener with a window breaker
• Parachutist - Removes the wood saw

Victorinox 111mm Linerlock Model Comparison