chronometr morski

John Harrison created the first highly accurate marine chronometer in the mid-18th century.

The marine chronometer was invented by John Harrison in 1730.

In this way ships in the bay were able to check their marine chronometers.

He was the first to use a marine chronometer to determine longitude.

John Harrison produced the first precise marine chronometer in 1761.

Certainly some marine chronometers used this balance, but none have survived.

In the 19th century the town was known for its pocket and marine chronometers.

Four years later the first marine chronometer was invented.

Accuracy can be checked by comparing daily with the ship's marine chronometer.

It remains the authoritative work on the marine chronometer.