LONGINES 'Tre Tacche' wristwatch with screwed case back in stainless steel, Switzerland around 1938, unpolished case, stepped bezel, original winding crown, screwed-down case back with dedication-engraving, original dial, original hands, silvered movement calibre 10.68Z, screw-balance, 3 pressed chatons, fausses cotes decoration, diameter approx. 30 mm, condition 2-3