GOLD LONGINES FLAGSHIP REF. 3405, 60S Three body circular 18K gold case, straight and faceted lugs, sloped bezel, snap on back, magnifying lens. Not original strap and buckle. 
Silvered brushed dial, signed, applied trapezoidal indexes, aperture for the date at 12, small seconds indication. Gilt sword hands.
Signed self-Winding movement, rhodium-plated caliber 351, n. 11504856, off-center rotor with peripheral gear, 17 jewels, lever escapement, monometallic balance, flat hairspring, KIF shock-absorber.
Diameter Ø: 35 mm
Note: working.