Longines, "Weems Chronograph", "Automatic", No. 2699, Ref 6745251....

Longines, "Weems Chronograph", "Automatic", No. 2699, Ref 6745251. Manufactured in limited edition for Swiss Air in the 1990s. Thin stainless steel water-resistant aviator's wristwatch with round-button chronograph, registers, tachometer, day/date and Longines stainless steel buckle. With box. Three-body bezel, polished and rounded, concave horns, transparent back, ball-shaped winding crown, sapphire crystals. Two-tone silver with painted Arabic numerals, "guilloché" subsidiary dials for the seconds, 30-minute and 12-hour registers, day and date apertures, external tachometric scale. Leaf" needles in blued steel. Mr. Cal. L. 674.5, based on Valjoux 7750, rhodium plated, "oeil de-perdrix" decoration, 17 jewels, straight lever escapement, monometallic balance wheel, shock absorber, self-compensating flat balance spring, hack mechanism. Dial case and signed movement. Diam. 41 mm. Thickness 14 mm. Used leather strap changed