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This is a genuine Hattori SEIKO VC10/VC11 circuit block electronic module, made in Japan, designed for the VC10/VC11 quartz calibers. It serves as the core control component, generating precise quartz frequency signals to drive the stepper motor for hand movement. The VC10 is a two-hand movement (hour/minute), while the VC11 is a three-hand movement (hour/minute/second). This product is brand new and original, intended for servicing and repair of VC10/VC11 movements.
Brand：Hattori / TMI / Seiko Instruments Inc. (by Seiko Time Corp.)
Compatible Movement：VC10 / VC11 quartz caliber
Part Name：Circuit Block Electronic Module
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 Seiko genuine part?
Yes. It is an original Hattori/TMI/Seiko factory part, made in Japan.
2. Which movements is this circuit module compatible with?
It fits Hattori SEIKO VC10 and VC11 quartz movements (5½×6¾ ligne, 13.00×15.15mm). The VC10 is a two-hand, no-date movement, while the VC11 is a three-hand, no-date movement. Verify the caliber marking on your movement main plate.
3. Are the circuit modules for VC10 and VC11 interchangeable?
Yes, they are. The VC10 and VC11 share the same dimensions (13.00×15.15mm) and 2.38mm height—the circuit modules are interchangeable. The difference lies in the hand count (VC10 is two-hand, VC11 is three-hand). Perform a visual comparison with your old module before installation.
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