If you get the chance, you can see some of Harrison's chronometers at the Royal Observatory in London, though I don't know if they're always on display.
I'll add a recommendation for Sextant by David Barrie.
"On Trails" by Robert Moore that discusses how walking paths from the first peoples persist, grow and change over hundreds of years, along with advances in walking trail design in recent years to become a part time recreational activity vs the pure utility of terrain traversal as they first were. Covers how a trail is a "living thing", as it were, because any who tread on it help reinforce it. Covers non human trails like ants and their reenforcement via pheromones and the like.