Hi Radu,
TVV is correct that it is Ottoman year 1789. The first and second is identical. All i can read is the word As-Sultan... (?) in the first row and third row of both coins. "Wa Hakkanul Bahrain" (Im not sure about this) in the second row. The fourth row reads "Islambul" and the fifth reads year 1203. The front side i can only read "Islambul" on the second line and 1203 on the third. The first is complex caligraphy.
The first line on the third coin i'm unable to determine but the second line reads As-Sultan. This link might be helpful:
http://www.rustypennies.com/catalog/turkish_coins.html