German watch, thermometer, power reserve Circa 1980

Gold open faced keyless pocket watch by Thomas Engel
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A rare German 18 carat gold open faced keyless lever chronometer watch with days of the week, power reserve and thermometer, circa 1980. Type concours observatoire certified chronometer lever movement, 19 jewels. Silvered engine turned regulator dial, polished chapter ring calibrated for minutes, two subsidiary dials indicating time display with Roman numerals and day in French, aperture indicating power reserve, fan form sector for thermometer. Engine turned case with screwed down case back, winding through the bow. Movement signed and numbered, dial signed. Comes with presentation box and spare spring.
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Diameter: 56.5 mm
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Signed: Tho. Engel
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Professor Thomas Engel is internationally known in the field of researching polymers and has received numerous honours and prizes. In 1972, Professor Engel was jointly awarded the ‘Diesel Prize’ with Dr. Wernher von Braun, who is one of the most important rocket developers. Other than his achievements in science, Engel is also a famous watch collector who ‘self-made’ technically outstanding timepieces that often incorporates the style of Breguet, known as Engel Breguets. Professor Engel is also the author of the book A.L. Breguet, Watchmaker to Kings, which detailed the life and exquisite timepieces made by Abraham Louis Breguet.