169.

Click clock,
Piece of iron,
And plastic and glass
And whatever else,
You count on it
And your life's in its hands.
Click clock,
What's the time?
It saves you more
Than some of its brothers,
But trust it not,
'Cause care it doesn't have.
Click clock,
Steel on stell,
You're not behind the wheel,
You don't get to decide,
You don't get to hide,
Once you're in, there's just hope.