See also: a film about Harrison, and his designs for a sea-voyage-proof clock. http://www.imdb.com/title/tt0192263/ http://www.imdb.com/title/tt0192263/ (I en

See also: a film about Harrison, and his designs for a sea-voyage-proof clock. http://www.imdb.com/title/tt0192263/ http://www.imdb.com/title/tt0192263/ (I enjoyed the film many years ago, and I can't recall what, if anything, it has in the way of technical details.)