Ref
H4 Marine Chronometer
"The Watch That Changed the World"
Ref. HARRISON-H4
Market Estimate
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Retail (MSRP)
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John Harrison spent 45 years solving the greatest scientific problem of the 18th century: determining longitude at sea. His H4 chronometer, completed in 1759, lost only 5 seconds over 81 days at sea — saving countless lives and enabling the age of exploration. It lives at the Royal Observatory in Greenwich.
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Specifications
⚙️Movement
manual
🛡️Case Material
Silver
📏Case Diameter
131mm
🎨Dial Color
White Enamel
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