Staying power is something that every watch brand hopes for when they launch a new model. Achieving this is far more complicated than it might seem at first. Many new models will be tweaked in their design within a relatively short period after their launch, while others ride a wave of fashion only to be discontinued as this wave is taken over by another one. Only with a rare few, the passing of time doesn't seem to get a hold of them. They have become icons for their respective brands, and benchmarks for the rest of the industry. But that doesn't mean that they did it by merely being idle.