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Very different questions were being asked of Patek in the '80s helvetia watch and in the 2010s, and I tend to like its answers to those challenges from the '80s more. In 2018, Cara wondered why results of the 3970 always felt a little softer than they should – montre boccia titanium femme and in the last couple of years, they've crept upward. union glashütte noramis At Sotheby's, these two perpetual calendar chronographs have the same high estimate ($120,000); I'm choosing the 3970EP every day.