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This is a genuine Ronda 785 cannon pinion, an original Swiss-made component for the Ronda 785 quartz movement. Positioned at the center of the movement, it is responsible for driving the minute hand and transmitting power from the center wheel to the minute wheel as the core transmission component for time display. This product is brand new and original, not a generic replacement part.
Brand：Ronda (Swiss)
Compatible Movement：785 quartz movement (8¾ ligne normtech series)
Part Name：Cannon Pinion / Center Pinion
Origin：Swiss Made (5 jewels, gilt) or Swiss Parts (1 jewel, nickel)
Quality：Genuine original, brand new
Function：Drives the minute hand and transmits power
1. Is this cannon pinion an original Ronda genuine part?
Yes. It is an original Ronda factory part, Swiss Made.
2. Which movements is this cannon pinion compatible with?
It fits the Ronda 785 series quartz movements, measuring 8¾ ligne (19.40mm) with 2.50mm thickness as part of Ronda’s normtech product line. Available in 3-hand with date (785-D3) and 2-hand with date (785-D6) versions—verify your movement model before installation.
3. How do I choose between standard and high pinion versions?
The 785 is available in standard and high pinion (H3) versions. Measure the height of your old cannon pinion with calipers before purchase to ensure correct fit with your case.
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