Analysis of Tick Tock

I'm a clock with no face,
Hands moving with time.
The pressure is rising
With each hourly chime.

A clock with no eyes
To see what lies ahead.
No way to ensure safety,
No end to my dread

A clock with no feelings
No heartbeat, no breath.
A clock with no conscience,
No fear of death.

What would happen
To the clock with no face
If the batteries died ?
Would they just be replaced ?

Time can be changed
Forward and back.
But not with this clock,
That something it lacks.

Time will go on
With each tickety-tock,
And the clock with no face
is still just a clock.