Atlantic WORLDMASTER Rare model with a vertical guilloche pattern resembling a lace curtain Type: Men’s Antishock system: Incabloc Movement: Hand-wound, Swiss Made, 17 Jewels, ETA 1100 Case type: Chrome Dial colour: Silver (very rare dial with a vertical guilloche pattern resembling a lace curtain) Crystal: Acrylic glass Strap type: Leather Strap colour: Black 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's a rare model, so-called 'lace curtain'. The watch functions thanks to an amazingly durable Swiss mechanism ETA 1100 on 17 jewels Chromed case. Steel screw back. Sharp crown. The watch has a black leather strap, 18 mm, with a thread (length: 240 mm). The watch looks nice. Please have a look at the photos which are part of the description.