Vintage Omega Porcelain Sign. Add a touch of vintage luxury to your gas station or man cave with this Vintage Omega Luxury Watches Porcelain Sign. Measuring 12 in size, this red, yellow, and black sign features the iconic Omega logo. This sign will enhance your living room, man cave, collection, bar, shop, or garage. It is your chance to own a piece of Omega advertising. 12 inches in diameter. Vibrant colors and excellent porcelain.