Craftsman's spirit refers to the craftsman's spiritual concept of meticulously crafting and improving his products.

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Inventor of British navigation clock: john harrison (1693–1776): Harrison spent more than 40 years building five navigation clocks, among which Hargreaves 4, which was completed in 1759, was the most prominent, sailing for 64 days, only 5 seconds slower, far exceeding the minimum error stipulated in the bill.