How to cook 1.5+ inch veal steak to medium?
Go buy a thermometer. There is no possible way to be guaranteed to hit the perfect point where it is medium well done but not overdone without knowing the internal temperature. How quickly it cooks depends on things like the temperature in your oven (they are rarely precise), the exact thickness of the steak, its exact internal temperature when you first place it in the oven, and so on. You can find a functioning oven thermometer for $3-4 at your local super market, so there is really no reason not to buy one.