Which navigation error increases most significantly when a chronometer loses its regulation during weeks-long voyage?

💡 Explanation

When a chronometer loses regulation (accurate timekeeping), the accumulated error in time directly impacts longitude determination because longitude is based on time difference from a reference meridian and a rate error accumulates over duration. Therefore precision of longitude determination is reduced, rather than affecting latitude, dead reckoning, or celestial sight reduction, which are tied to other mechanisms/principles.

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