To make a good a good definition of a Swatch Prototype and a Variant is not so easy. This is the way Squiggly sees it:
Any Swatch that is produced before the actual production model and that is different than the production model should be considered prototype.
Any model that is produced after the actual production model and that is different than the actual production model should be considered variant.
These models are only interesting for the hardcore Swatch-collector.
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