What's that frame ? I can't find anything about it anywhere
"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.


https://www.pedalroom.com/bike/teker-pro-team-36400
https://www.pedalroom.com/bike/teker-6800-36250


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.