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Zb-4021 Analog Watch
Brand: Generic / OEM
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Audited BOM: 8 Components
RMA Chain & Defect Intelligence
Root cause causal graph linking factory engineering flaws to verified consumer return reasons.
⚡ Causal Link: Defect to Consumer Return
The low-quality quartz movement (ENG-001) is the root cause of premature watch failure (RMA-001) and excessive time deviation (REV-006), leading to negative reviews (REV-001).
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