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This is a genuine Ronda 1042 coil block, a key electromagnetic component of the quartz movement that drives the stepper motor to move the hands. As an authentic Ronda part, it is used to repair or replace the damaged or failed coil section within a Ronda 1042 movement.
Genuine Ronda Part – Not a copy or generic component, ensures perfect fit with Ronda 1042 movements.
Core Quartz Component – Converts battery energy into magnetic energy to drive the rotor, directly affecting timekeeping accuracy.
Compatible Movement – Specifically designed for Ronda 1042 quartz caliber (not compatible with other calibers like 1042 variants – check part number).
Brand New – Unused factory stock, no aging or performance loss.
Easy Replacement – For experienced repairers, can be soldered or replaced directly onto the movement mainplate.
1. Is this a genuine Ronda coil block?
Yes. The product clearly states “Genuine Ronda Part”, meaning it is produced by Ronda, not a third-party compatible part.
2. Which movements is this coil block compatible with?
It is designed exclusively for Ronda 1042 quartz calibers. Different variants (e.g., 1042A, 1042B) may have identical coils, but always verify with the parts diagram of your movement.
3. What are typical symptoms of a faulty coil?
The movement has a fresh battery but does not run, or the second hand jumps irregularly or stops. A multimeter reading of infinite resistance indicates an open coil (normal resistance is a few hundred to a few thousand ohms, refer to technical manual).
4. What should I pay attention to during installation?
Handle soldering or wiring connections carefully to prevent overheating damage. Professional watch repair is recommended; clean the contact points before installation.
5. Is there any warranty?
As a brand new genuine part, it typically comes with the supplier’s quality guarantee. Please check with your seller for details.
Fast worldwide shipping within 3 business days.
Competitive pricing on Seiko/Hattori calibers.
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