OMEGA produced the Constellation in 1952, focusing its image on luxury, a high-quality for which the model continues to be known nowadays. Every watch displays an observatory symbol to represent its status as an Observatory-certified chronometer. Until the late 1960's, the dial was shaped like an upside down pie-pan, which coined its nickname. This dial was essentially named the 'douze pans' (twelve facets) and had a water resistant case offered in snap and screw back. Toy omega replica constellation chronometers inside the 300, 500, 700, and 1000 series had been created in-house by OMEGA till the Swatch Group acquired the firm. These movements are hugely prized for their craftsmanship, generating those watches incredibly collectible. Collectors normally look for Constellations developed inside the 50's and 70's, but OMEGA replica continues to be creating beautiful updated versions right now.