The new Antarctic 35mm takes inspiration from a 1950s Nivada Grenchen of the same name. In the mid-'50s, the U.S. began a series of missions to Antarctica, called "Operation Deep link Freeze." Admiral Richard Byrd oversaw the operations – on his wrist was a Nivada Grenchen (Croton) Antarctic. You can see link the exact same watch in period advertising link like this one:
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