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This is a generic coil block for the TMI/Seiko VX11 quartz movement, serving as the core drive component of the stepper motor. It consists of precision copper windings and a core, responsible for converting electrical pulses from the circuit board into magnetic force to drive the rotor, which then turns the gear train. When the original movement’s coil suffers an open circuit, short circuit, moisture corrosion, or physical damage, replacing it with this new coil assembly is the most direct and effective solution to restore timekeeping. This product is a generic replacement part.
Brand：Hattori (generic replacement, non-original)
Compatible Movement：VX11 quartz caliber (TMI/Seiko)
Part Name：Coil Block (Stepper Motor Coil)
Origin：Made in Japan
Quality：Generic new part
Function：Converts electrical pulses to magnetic force to drive rotor
1. Is this coil an original Hattori genuine part?
No. This is a generic replacement part, not an original Hattori/TMI factory part, but specifically sized for the VX11 movement to meet repair needs.
2. Which movements is this coil compatible with?
It fits the TMI/Seiko VX11 quartz movement (5½ × 6¾ ligne, 13.00 × 15.15mm). The VX11 is a 3-hand, no-date movement. This coil does not fit VX12 (with date) or VX10 (2-hand) models.
3. What symptoms indicate coil damage?
The coil is the core drive component of the stepper motor. Common symptoms include: movement not running after battery replacement, noticeable time gain/loss, or intermittent stoppage. Common causes include open circuits, short circuits, moisture corrosion, or physical damage. After coil replacement, the movement should resume normal timekeeping.
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