I've got no idea what frame that is, or when it's been made. If anybody knows anything about it please let me know
"Teker" seems to be a name related to pants and motorbikes. A good google search phrase would be "teker road bicycle -pants -motor"
I found two bikes with the same brand listed - the logo is identical too.
Both have shimano 600 series components, which were released in DuraAce in 1983 and discontinued in the early 90s.
Thing is, your bike looks newer than that - based on appearance I'd spec yours at late 90s through to early 2000s.
Not a good answer, but its a start.