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This is a genuine Ronda 3H second wheel for the 5030 movement, made in Switzerland, designed specifically for the Ronda 5030.D quartz chronograph caliber. It serves as the drive component for the 60-second small seconds subdial at 3 o’clock, powering the continuously running small seconds hand as one of the core transmission components. This product is brand new and original, not a generic replacement part.
Brand：Ronda (Swiss)
Compatible Movement：5030.D quartz chronograph movement
Part Name：3H Second Wheel (small seconds drive at 3 o’clock)
Origin：Made in Switzerland
Quality：Genuine original, brand new
Function：Drives the 60-second small seconds hand at 3 o’clock
Movement Size：12½ ligne (28.00mm)
Movement Height：4.40mm
Layout：3-eye chronograph (small seconds at 3H, 30min totalizer at 9H, 12H totalizer at 6H)
1. Is this 3H second wheel an original Ronda genuine part?
Yes. It is an original Ronda factory part, made in Switzerland. Ronda is a renowned Swiss quartz movement manufacturer, and the 5030.
2. What happens if the 3H second wheel is damaged?
The 3H second wheel drives the 60-second small seconds at 3 o’clock. Damage can cause the small seconds hand to stop or run incorrectly, affecting basic timekeeping. As a continuously driven component, timely replacement is recommended.
3. Does this part come with installation tools or instructions?
No. This is a single precision component. Installation requires professional tools; work should be performed by a qualified watchmaker.
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