the servo is the one that is included in the starter kit.
on further study there is an obvious number on it that is a product code (SM-S2309S) that states movement of about 60 degrees on the data sheets, so its just incorrectly stated in the book.
next time I might actually look at the component...
Well the datasheet I found doesn't give the total travel range. http://www.servodatabase.com/servo/springrc/sm-s2309s
The spec listed:
4.8V: 0.12 sec/60°
6.0V: 0.10 sec/60°
Is a speed specification telling how many degrees it can move in so much time at what operating voltage.
The total range specification is shown as:
Rotational Range: ? (add)