The SeikoMATIC WEEKDATER Ref. 6218-8970 of 1964 is a 37mm round stainless-steel automatic with a silver-champagne dress dial. Its automatic caliber 6218 runs at 18,000 vph, and the WEEKDATER name signals the day-and-date display that separates it from the plainer SeikoMATIC 6218-8000.
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