The prop, one of the many gadgets used by 007 during his 50 years on screen, was key to the plot of the film as it helped the secret agent locate stolen atomic weapons during underwater scenes in the 1965 film.
The Breitling watch was picked up for £25, but is now to be sold by Christie's in London with an estimated price of up to £60,000.
The Top Time model by the luxury Swiss watch firm was the first watch Bond moviegoers had seen being adapted by Q's team of boffins in the 007 film series.
It is one of a number of items that are given to Bond by Q, who was played by Desmond Llewelyn, when he heads over to Nassau.
View: Read more