This Atlantic Worldmaster Jumbo, dated to 1970, presents a distinctive two-tone Bull's Eye dial and the period-correct Cal. 1100 movement. The layered dial design and jumbo proportions speak to 1970s tastes for bold, graphic wristwatches, while the solid construction reflects Atlantic’s mid-century manufacturing. Powered by the Cal. 1100, the watch carries the mechanical character collectors appreciate: a straightforward, serviceable movement rooted in practical watchmaking. For a contemporary enthusiast, this Worldmaster offers a clear design statement and an authentic example of Atlantic’s approach to accessible, well-made vintage timepieces.