QC should examine the teak lines for even spacing and clean termination, confirm the blue tone under different light, and check date centering and hand alignment. Inspect the polished bezel and twisted lugs for consistent edges, then test the crown, bracelet articulation, brushed to polished transitions, and butterfly clasp engagement. The final check should preserve the calm, precise character that makes this Aqua Terra a useful alternative to a Diver 300M.
The Aqua Terra works because its surfaces are controlled rather than dramatic. The dial texture should remain legible without overpowering the markers, and the bracelet should carry the same measured alternation from the first link through the butterfly clasp. Buyers comparing it with a Diver 300M should focus on the fixed bezel and slimmer visual language, since those are the parts that make this configuration useful for more formal settings.