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This is a genuine MIYOTA circuit block electronic module for the GM00 movement, made in Japan. It serves as the core control component of the movement, manufactured using COB (Chip On Board) technology with an integrated 32,768Hz quartz crystal for precise frequency generation to drive the stepper motor. This product is brand new and original, intended for servicing and repair of GM00 movements.
Brand：MIYOTA (by CITIZEN)
Compatible Movements：GM00 / GM10 / GM12 / GM15 quartz calibers
Part Name：Circuit Block Electronic Module
Part Number：279-M07
Origin：Made in Japan
Quality：Genuine original, brand new
Function：Generates and processes time signals, drives stepper motor
1. Is this circuit module an original MIYOTA genuine part?
Yes. It is an original MIYOTA factory part (part number 279-M07), made in Japan.
2. Which movements is this circuit module compatible with?
It fits MIYOTA GM00 / GM10 / GM12 / GM15 series quartz movements, as well as GL20 / GL22 / GL30 slim series calibers. This is the standard circuit component for the GM00 movement.
3. What happens if the circuit module is damaged?
The circuit module is the core control component of the movement. Common symptoms include: movement not running after battery replacement, noticeable time gain/loss, or intermittent stoppage. The GM00 offers accuracy of ±20 seconds/month—circuit failure directly impacts performance. Timely replacement is recommended.
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