Oyster Perpetual 6564 — Amtlich Geprüfter Chronometer Dial

18k gold 6564 with the 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. text in German (“Amtlich geprüfter 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.”) and faceted rocket-shaped indexes at 3, 6 and 9 (circa 1956).