Original Seiko coil block with reference 4002092 from unused old stock (NOS). This electronic coil module is compatible with the following Seiko quartz calibers:
2K02A
2K03A
2K22A
2K23A
V802A
V803A
V806A
The coil assembly is a key component of the electronic control system for the quartz movement. Defective coils are among the most common causes of failure in older Seiko quartz models, which is why functioning original parts are in high demand.
The part is unused, comes from long storage and is in excellent original condition – ideal for repairing, servicing or recommissioning rare vintage Seiko quartz movements.
