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I've been meaning to inquire about this dial for some time as it really appeals to me. I have a 1960 Seamaster with a 520 movement featuring a dial of this configuration, an obvious redo. Suspect that both this auction watch and my own watch never came with this style dial. Is there a name for this particular dial? Did it appear as an original dial on any other Omega models besides the Railmaster and the Ranchero?