BREITLING WAKMANN

618-12

640-12

618-24

640-24

In 1884 Leon Breitling began manufacturung watches in La Chaux-de-Fonds in the Swiss Jura mountains. At the outbreak of World War I Gaston , Leon´s son continue with the company, he devoted his time and telent designing a chronograph wristwash, soon won accolades from aviators, armed forces and sportng worls.

During the depresion in 1932 Willy Breitling succeeded his father, he felt that the potential of the chronograph as an aviational timepiece had not been fully realized, he created these clocks.

This clocks previous to the 651 model used in B-727 were used in several planes as DC-7, B-707, Lockheed L-188 Electra, Convair Coronado etc, each company choose the cockpit instrumentation and therefore the clock.

The DC-6 (left bottom) Originally intended as a military transport near the end of World War II, it was reworked after the war to compete with the Lockheed Constellation in the long-range commercial transport market. It was built between 1946 and 1949 and it is essentially a streched, more powerful, and pressurized version of the DC-4, the only exterior difference between DC-4 and DC-6 are the fuselage windows in DC-6 they are square while in DC-4 they are porthole style.

The DC-7 (right bottom), is 3 feet 4 inches longer and with a more powerfull engines that makes it basically an intercontinental aircraft. It was built since 1953 till 1958, shortly before the first jet powered airlines as DC-8 and B-707. The only difference between DC-6 and DC-7 is the number of blades in engines 4 blades in DC-7 , and 3 in the DC-6.

The Lockheed L-188 Electra was built between 1957 and 1961 to complete the requirements of American Airlines, the good start of sales was interrupted by 3 serious accidents between 1959 and 1960 that forced a costly program to develop aircraft modification to correct a design failure that led to the finish of the production. This aircraft was the model for the development of P-3 Orion maritime patrol, still today in service.

The USAF version of 640-12, was denominated A-10, equiped the Republic F-84F Thunderstreak

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