Atlantic WORLDMASTER EXTRA A rare model with a guilloche dial. Type: Men's Antishock system: Incabloc Movement: Hand-wound, Swiss Made, 17 Jewels, ETA 1100 Case type: Chromed Dial colour: Ecru with patina - (guilloche) Crystal: Acrylic glass Strap colour: Brown with a thread, 18 mm Case width without the crown: 37 mm / with the crown: 39 mm Case thickness: 10 mm The watch is from the 1950s. It is a rare model with a guilloche dial. The watch functions thanks to an amazingly durable Swiss mechanism ETA 1100 on 17 jewels . Chromed case. Steel screw-down case back, signed. Sharp crown. Beautiful original ecru dial with patina. There are original gilded indicators, numerals, and indexes on the dial, which look excellent. The watch has a brown strap (length 240 mm). The watch looks beautiful. Please look at the photos which are part of the description. The watch will be professionally packaged and shipped with a tracking number.