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This is a genuine Ronda 5030 short coil block, a Swiss-made component for the Ronda 5030.D quartz chronograph movement. It serves as the core drive component of the stepper motor, converting electrical pulses from the circuit board into magnetic force to drive the gear train for precise timekeeping and chronograph functions. The short coil corresponds to a specific motor (M1/M2/M3/M4) within the movement—the Ronda 5030.D uses four independent coils to drive different functions. This product is brand new and original, intended for servicing and repair of 5030 movements.
Brand：Ronda (Swiss)
Compatible Movement：5030.D quartz chronograph caliber
Part Name：Short Coil Block
Origin：Made in Switzerland
Quality：Genuine original, brand new
Function：Converts electrical pulses to magnetic force to drive stepper motor
1. Is this coil block an original Ronda genuine part?
Yes. It is an original Ronda factory part from Switzerland, designed for the 5030.D movement.
2. Which movements is this coil block compatible with?
It fits the Ronda 5030.D quartz chronograph movement (12½ ligne, 28.60mm, 4.40mm height). This is a 3-eye chronograph movement featuring 30-minute totalizer, 12-hour totalizer, small seconds, date, and ADD/SPLIT functions.
3. How many coils does the 5030.D movement have?
The Ronda 5030.D uses four independent coil modules (M1/M2/M3/M4), each driving a different motor. The short coil is one of these—verify which motor’s coil is damaged before installation.
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