I know there is little collector interest in 12-size watches, especially Bulovas, but its uncommon, top-of-the-line Phantom model should be worth collecting. They all are elegant and thin high-grade Swiss watches. No one really knows who supplied the movements to Bulova, but Audemars Piguet, C.H. Meylan, and Les Fils de Louis-Elisee Piguet (aka Frederic Piguet, now part of Blancpain) are thought to be the suppliers. I just acquired my third example. Like my first two, it is an open-face watch with a metal dial with applied gold Roman numerals and blued steel hands. My first two Phantoms are in 18k cases, and their movements are serial numbers 330 and 503. My latest Phantom is in a 19k white gold cushion case, marked American Standard and has no serial number. I understand the 19k case to be how the first Phantoms were cased. I think my new Phantom is a very pretty watch.