Видео с ютуба John Harrison Chronometer

A Detailed Study of H4 - John Harrison's Longitude Timekeeper Reconstruction

John Harrison's "H2" clock in action

Longitude - TV movie 2000

The First Chronometer. John Harrison & The Clock That Changed the World

The longitude problem: history's deadliest riddle

John Harrison's "H1" clock in action

The Longitude Problem - Improving Navigation with the Harrison Clocks

The Carpenter Who Outsmarted Newton

A model of the remontoire action on John Harrisons longitude watch H4

The Clock That Changed the World (BBC History of the World)

Should we stop the Harrison clock?

The Clockmaker Who Changed the World: John Harrison's Impact on Navigation

John Harrison's "H3" clock in action

Larcum Kendall 'K1' - Captain Cook's historic chronometer watch at Greenwich – With the BHI

Twin Pivot Grasshopper Escapement - invented by John Harrison

Amazingly accurate clock finally recognised after 300 years - Guinness World Records

John Harrison’s Legacy in Action #horology

COMITTI - The Navigator Clock

John Harrison and his solving of ‘The Longitude Problem’

John Harrison Grasshopper Escapement 3D Printed Clock Starting