Unique German 18k rose gold half open-faced lever Circa 1880

Rose gold lever made for the American market by A. Lange & Söhne
–
A very fine and unique German 18-carat rose gold half open-faced keyless lever pocket watch with 1st quality movement made for the American market, circa 1880. With special dial for railroad executive Thomas Fletcher Oakes (1843-1919). Sold to Charles William Schumann, New York, on March 27, 1880. Nickel-plated 3/4 plate Glashütte movement, jeweled to the center, gold chatons with blued steel screws, straight-line Glashütte lever escapement, gold pallet fork and escape wheel, banking with a pin and hole, Lange Guillaume-type balance with gold timing screws, blued steel Breguet balance spring, the terminal stud adjustable by a screw, diamond endstone, index regulator. White enamel dial with letters spelling the name THOMAS FOAKES in place of numerals, outer minute track, subsidiary seconds dial, and original blued steel spade hands. Solid and polished American case, the back with an applied monogram TFO. Gold hinged cuvette engraved T.F. Oakes, From His Friends, Len. T. Smith, C. H. Prescott, G. J. Field, B. P. M. Donald, New York, July 1st, 1880. Dial and movement signed, case numbered. Accompanied by a Lange & Söhne Certificate and biography of Thomas Oakes.
–
Diameter: 51 mm
–
Signed: A. Lange & Sohne Glashutte B/Dresden
–
It is very unusual to find a watch by Lange & Sohne specifically made for the American market.