This water tower is integrated in the wall of the Şehzade complex. It is 13 m high and stands on a square plinth.
See https://maps.app.goo.gl/wKgX3tfSZsVWvzkQA (but the pin is on the wrong location) and https://www.canercangul.com/11740/sehzadebasi-su-terazisi-avlu-duvari/