Games : How long does the game last?

In Championship Manager 2, how long does the game last?

I have tried hunting around for the answer but the closest I could get was speculation that either the game automatically retired you (possibly when you were 75) or the game just went on forever.

The odd thing is, the game doesn't store your age (or any manager's age). However, there is a value for number of years in the game and computer managers will eventually retire. Additionally, you could bypass such a restriction by just adding a new manager when your current manager retires.