Caliber 219 is a redesigned 218, where the tuning fork has only one magnet cap. This saves space and helps to better mount the electronic circuit, leading to a cut in manufacturing cost. Frequency of the tuning fork: 360 Hz Also the numbering scheme of the Caliber has been modified: 2190 is obsolete, 2191 without calendar, 2192 with date, 2193 with day/date.
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