@ico7liv, why didn't you post the link that @slipstick found?
I have a feeling, from looking at that and other sail winch servos on the Hobby King page that the OP's servo just works through 360 degrees. Other servos list the number of turns. Alternatively the 25T in the name means that it can do 25 turns - which seems unlikely.
In any case the way servos are controlled means that servo.write(0) is one extreme of the motion and servo.write(180) is the other extreme even is the actual number of degrees moved is far greater.
If it really is a 360 degree servo then servo.write(90) would make it go to 180 degrees etc.
And, as @slipstick has said it would be much better to use servo.writeMicroseconds() for finer control.
...R