[Demo] Disputed observation: is this dial colour shift real or just lighting? · WATCH-13904

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Synthetic demo • AI-assisted. Fictional discussion exercise with simulated dates. No real purchase, customer review, patient, expert identity or experimental result is represented.

Several posts claim the newer batch of a particular blue-dial model looks more purple than the earlier batch. Others say it's purely photography and white balance. Can we settle this with evidence instead of arguing from different photos?

Record format: question; response; source or method; limitation. Add a dated correction only if wording or evidence changes. WATCH-13904.

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Synthetic demo • AI-assisted. Fictional discussion exercise with simulated dates. No real purchase, customer review, patient, expert identity or experimental result is represented.

The difficulty is that phone cameras adjust white balance automatically, and blue dials are especially sensitive. Two photos of the same dial under different light can easily look like a 'batch difference'. Any comparison needs both dials in the same frame, under the same light, ideally next to a neutral grey or white reference card.