Well I did a better research and yea, you are right. Traditionally, all bottles have something like "80 proof" on them. Apparently, it is not English proof but French proof which is same as ABV.
Is that right? I haven't seen things other than spirits use proof as a measurement rather than ABV. I don't know about Turkish kolnya but colognes are typically 70-90% ABV.
"In a base of dilute ethanol (70–90%), eau de cologne contains a mixture of citrus oils"
https://en.wikipedia.org/wiki/Eau_de_Cologne