We only found two of these over the space of 10 years looking.

Clock from Doc Brown's House in BTTF1 - Out of Stock

This clock is the exactly the same as that used in BTTF 1.

The clock is seen in the opening credits and is a hint at Doc's future. The clock actually depicts Harold Lloyd (1893-1971), American motion-picture actor, one of the leading performers of the golden age of comedy.

The clock is actually a flat piece of plastic with a photo-quality print on the front. A battery-operated quartz mechanism is fitted at the back, with hands through to the front. A flat laminated Harold Lloyd hangs from the clock.

The first picture is a still from the movie. The second picture is the clock we had for sale.