Parallel stories: 18th century Harrison builds the marine chronometer for safe navigation at sea; 20th century Gould is obsessed with restoring it.
| Directing | Charles Sturridge | Director |
| Writing | Charles Sturridge | Writer |
| Writing | Dava Sobel | Novel |
| Sound | Geoffrey Burgon | Music |
| Editing | Peter Coulson | Editor |
| Costume & Make-Up | Shirley Russell | Costume Design |
| Camera | Peter Hannan | Director of Photography |
| Production | Pippa Cross | Executive Producer |
| Production | Antony Root | Executive Producer |
| Production | Selwyn Roberts | Producer |
| Art | Eileen Diss | Production Design |
| Art | Chris Lowe | Production Design |
| Production | Celestia Fox | Casting |
| Art | John Greaves | Storyboard Artist |
| Costume & Make-Up | Richard Pointing | Costume Supervisor |
| Costume & Make-Up | Helen Barrett | Makeup Artist |
| Costume & Make-Up | Jeremy Woodhead | Makeup Artist |
| Directing | Selwyn Roberts | Second Unit Director |
| Costume & Make-Up | Christine Beveridge | Makeup & Hair |
