Quality is not something we inspect at the end – it is built in at every step. Here is what actually happens to a batch of Eji watches before it is allowed to ship.
1. Incoming Material Inspection
Movements, cases, crystals, straps and dials are batch-checked the moment they arrive. Non-conforming lots are returned before they ever touch the assembly line.
2. In-Line Assembly Checkpoints
QC stations sit between assembly stages, not only at the end. Each stage – movement fitting, dial and hand setting, casing, sealing – has its own pass criteria.
3. Instrumented Testing
Every mechanical watch is verified on a timegrapher for accuracy; diver models are pressure-tested to their rated depth (100m for our A003 diver); and sample pieces undergo shock and drop testing.
4. Extended Duration Testing
Sample watches from each batch run continuously for 48+ hours to catch defects that only appear over time – amplitude drop, hand alignment, date changeover.
5. Final Visual Inspection and Packing
Every single watch is inspected under standardized light, then sealed with protective film and packed. A batch is only released when all stages are green.
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