MIYOTA/CITIZEN GL20 Circuit Block
MIYOTA/CITIZEN GL20 Circuit Block Electronic Module - Image 2

MIYOTA/CITIZEN GL20 Circuit Block Electronic Module

$3.50
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1 - 4 — $3.50
5 - 9 5 % $3.33
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Product Description

This is a genuine MIYOTA circuit block electronic module (Part No. 279-K057) for the GL20 slim quartz movement, made in Japan. Manufactured using COB (Chip On Board) technology with an integrated 32,768Hz quartz crystal, it serves as the core control component of the movement, generating stable pulse signals for the stepper motor to ensure precise timekeeping. This product is brand new and original, intended for servicing and repair of compatible movements.

Specifications

  • Part Number：279-K057

  • Compatible Movements：GL20 / GL22 / GL30 slim series and GM00 / GM10 / GM12 / GM15 series quartz calibers

  • Origin：Made in Japan

  • Quality：Genuine original, brand new

  • Function：Generates and processes time signals, drives stepper motor

  • Technology：COB (Chip On Board)

  • Frequency：32,768Hz (tuning fork type quartz crystal)

FAQ

1. Is this circuit module an original MIYOTA genuine part?
Yes. It is an original MIYOTA factory part (Part No. 279-K057), made in Japan.

2. Which movements is this circuit module compatible with?
It fits MIYOTA GL20, GL22, GL30 slim series and GM00, GM10, GM12, GM15 series quartz movements. This module is fully compatible with the GL20. Verify the caliber marking on your movement main plate before installation.

3. What are the symptoms of circuit module failure?
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 GL20 uses an SR621SW battery—circuit failure directly impacts timekeeping. Timely replacement is recommended.

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