A very early quartz watch with 32768 Hz by Ronda. Stainless Steel case with Stainless steel band. Signed front: “Ronda, Quartz, 32768 Hz, Swiss Made”, back: “Quartz, 32’768 Hz, Stainless Steel Back, Waterresistant, Mod 300”, inside: “Ronda-Quartz, Swiss, Kaliber 1377, Three Jewels, Unadjusted”, Day and Date at 6. This is the fourth version of the caliber with the small IC and the tuning fork quartz, the predecessor is here, Ronda 2.
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