I clocked this over on a blog I visit...
I know many of us like the racing/watch connection, and the description says 'lavishly illustrated', of all his films, so there may be some Heuer action. I don't own this book, so can't comment first hand.

The official description..

"Steve McQueen: The Actor and his Films, is the definitive account of every film that the iconic actor made. This lavishly illustrated book devotes nearly 500 pages to Steve McQueen’s career and tracks his journey from juvenile delinquent, to Marine, to an aspiring actor breaking into Hollywood, until he became a global superstar and the highest-paid actor of his era. Included are numerous behind the scenes tales of events that occurred leading up to and during filming, and fascinating insights into McQueen’s acting techniques and motivations."

http://www.amazon.com/exec/obidos/ASIN/1854432532/uncrate-20

Cheers
Stewart