Microtech Nemesis II Single Action OTF from 06/2003
The knife opens automatically by pushing the button, after which the blade can be pulled back with a lever inside the back of the handle.
Specs:
Length opened: 21,6 cm
Length closed: 12,2 cm
Blade length: 9,2 cm
Blade thickness: 3,75 mm
Steel: most likely 154CM stainless (not marked)
Handle material: hard anodized 6061 aluminum
Weight: 94 grams