Lindbergh model, Movement No.5575403, Case No.20770/33, Circa 1935
15-jewel Cal.18.69N nickel-finished lever movement, bimetallic compensation balance, hinged stainless steel cuvette, the white enamel dial with black Roman numerals, inner scale calibrated for 180 degrees with blue Arabic numerals, inner silvered rotating disc calibrated for 60 seconds and 15 degrees, blued steel moon-style hands, blued steel indirect sweep centre seconds hand, the large silver case with revolving bezel calibrated for 15 degrees in blue enamel and subdivisions in black enamel, hinged back, large ball-form crown, case and cuvette numbered, dial signed Longines, movement signed and numbered
47mm.