Air-King 5500 — Precision Dial

Dial reads “Precision”, usually over the non-chronometerChronometerA watch or movement certified for timekeeping precision under a defined testing standard. The applicable certification depends on its maker and period; it is not the same as a chronograph. caliberCaliberThe designation of a watch movement, identifying its design or movement family. 1520 used from the 1960s to the end of production. Bob's notes US-market movements had 17 jewelsA natural or synthetic stone used as a bearing or endstone for a movement pivot. to cut import duty, others 26. Typical late example: satin silver dial, faceted steel batons with lume dots.