Breitling Top Time
James Bond (Sean Connery) wears a modified Breitling Top Time chronograph watch in the movie Thunderball (1965). The Breitling is given to Bond by Q and acts as a geiger counter.
The Breitling Top Time has a stainless steel case, black dial, two metal subdials and a metal tachymeter ring around the dial. The case of the watch in the movie was modified by the prop department and is completely different from a standard Breitling Top Time: compare images on the left of Bond's watch and a 'standard' Breitling Top Time.
The Top Time is not the only Breitling watch seen in Thunderball: Captain Derval wears a Bretling 806 Navitimer with metal case, black dial, three white or silver subdials and black leather strap. Bond takes that watch of Derval's dead body and shows it to Domino to prove Derval has been killed.
Update May 2013
The original Geiger Counter watch used in Thunderball, worn by Sean Connery, has recently surfaced. Read the amazing story here. This orginal watch prop will be auctioned on June 26, 2013 at Christies. The auction description gives us more details about the watch:
The watch is composed of a stainless steel chronograph timepiece, by Breitling, Ref. 2002, case no. 984343, manufactured in 1962 and then modified, the black dial with applied baton hour markers, luminous hands, sweep centre seconds, two subsidiary dials for constant seconds and 45 minute registers, and outer silvered tachymeter scale, in circular case with two chronograph buttons in the band, case 35mm wide, case and dial signed, mounted in glazed water resistant type case with screw down bezel and case reverse, by Valley Tool Company, 47mm wide, signed V.T.C.
Thanks to WatchClub.com for the Breitling Top Time photo