Heuer Montreal 110.503

HEUER Montreal reference 110.503 wristwatch with chronograph in steel, Switzerland around 1975, self winding, two piece construction case, case back with original sticker screwed down, original pusher and winding crown, mineral glass, blue dial, silvered minutes and sub-dials, date at 6, gold plated movement calibre 12, 17 jewels, precision adjustment, diameter approx. 42 mm, condition 2, property of a collector