The seller’s hoping to use the star’s pedigree to more than double the purchase price.
Bonhams is also putting a notable Ducati and Harley-Davidson on the block in Las Vegas.
Heated controversy about the watch’s provenance has led the auction house to retract the timepiece from the planned sale.
The model made famous by screen legend Steve McQueen is still lean and mean.
The only known watch engraved with the iconic actor’s name is set to go on the block.