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This is a genuine Ronda 785 third wheel, an original Swiss-made component for the Ronda 785 quartz movement. Positioned between the center wheel and the fourth wheel, it serves as the key intermediate gear of the gear train, smoothly transmitting power from the center wheel to the seconds wheel for accurate timekeeping. This product is brand new and original, not a generic replacement part.
Brand：Ronda (Swiss)
Compatible Movement：785 quartz movement (normtech series)
Part Name：Third Wheel (Intermediate Transmission Gear)
Origin：Swiss Made (5 jewels, gilt) or Swiss Parts (1 jewel, nickel)
Quality：Genuine original, brand new
Function：Power transmission from center wheel to seconds wheel
1. Is this third wheel an original Ronda genuine part?
Yes. It is an original Ronda factory part, Swiss Made.
2. Which movements is this third wheel compatible with?
It fits the Ronda 785 series quartz movements, measuring 8¾ ligne (Ø19.40mm) with 2.50mm thickness. The 785 belongs to Ronda’s normtech product line, available in 3-hand with date and 2-hand with date versions. Verify your movement main plate is marked 785.
3. What happens if the third wheel is damaged?
The third wheel is the key intermediate gear of the gear train, positioned between the center wheel and the fourth wheel. Damage can cause timekeeping errors, hand stoppage, or power transmission failure. Timely replacement is recommended.
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