Ronda 017A

Ronda, a Swiss movement manufacturer, produces the Ronda 017A, a manual-winding mechanical movement. This caliber is designed to power time-only watches, requiring direct interaction from the wearer to maintain its operation. The Ronda 017A operates at a frequency of 18,000 vibrations per hour (vph), which translates to 2.5 Hertz. This beat rate means the seconds hand advances five times per second, resulting in a distinct, measured sweep across the dial. Within its mechanism, 23 jewels are strategically placed at points of friction. These synthetic rubies serve to minimize wear on critical moving parts, contributing to the movement's longevity and consistent performance over time. Measuring 38.85 mm in diameter, the Ronda 017A is a sizable movement. This dimension dictates that it is suitable for watches with larger case sizes, where it can occupy a substantial portion of the watch's interior. For the wearer, the manual-winding nature of the Ronda 017A necessitates a daily ritual of winding, connecting them directly to the timepiece. Its robust jewel count supports reliable timekeeping, while its specific beat rate offers a characteristic visual rhythm to the seconds hand. The movement's substantial diameter influences the overall size and presence of the watch it inhabits.

Specifications

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