Mainspring: Audiobook
Book 1 of the Clockwork Earth series
According to The Books Insider's catalog data, the Mainspring audiobook runs 13.3 hours unabridged, narrated by William Dufris (about 8.9 hours at 1.5× playback speed).
The instrument When will you finish it?
Based on 13.3 hours of listening.
| Your pace | You'll finish in |
|---|---|
| 30 min / day | 27 days |
| 1 hour / day | 14 days |
| 2 hours / day | 7 days |
| 1 hour / day at 1.5× | 9 days |
You'll finish in – by –
Part of The Audiobook Finish-Time Calculator: the same instrument for any audiobook we measure.
What our data says
- At 13.3 hours, it runs longer than 82% of the 13,269 Science Fiction audiobooks in our catalog.
More narrated by William Dufris
William Dufris narrates 321 unabridged audiobooks in our catalog, 3,110 hours in all.
About as long, on the Science Fiction shelf
1,543 Science Fiction audiobooks in our catalog run within 10% of this length. The most popular on the store:
Computed from 409,794 English-language unabridged audiobooks in The Books Insider catalog (store data read November 3, 2026). Lengths are the store's own running times. Methodology.
About this listen
Mainspring is book 1 of Jay Lake's Clockwork Earth series: a 13.3-hour unabridged recording, read by William Dufris, released November 15, 2007, on the Science Fiction shelf.
The listen at a glance
- Length
- 13.3 hrs
- Narrated by
- William Dufris
- Released
- November 15, 2007
- Format
- Unabridged audiobook
- Language
- English
- Store shelves
- Science Fiction
- Series
- Clockwork Earth #1
- ISBN
- 9781427204899
How to listen to Mainspring free
New members at audiobooks.com get three free audiobooks with the trial.
Separately, the store's catalog carries more than 10,000 audiobooks that are always free to stream.
Start listening freeQuestions listeners ask
How long is the Mainspring audiobook?
Mainspring runs 13.3 hours unabridged. At 1.5× speed that drops to roughly 8.9 hours.
Is the Mainspring audiobook free?
Yes, for new listeners: the trial starts you with three free audiobooks.
Who narrates Mainspring?
Mainspring is narrated by William Dufris.
Is Mainspring worth listening to at 1.5× speed?
At 1.5× you'd finish in about 8.9 hours, saving 4.4 hours.