5 ms·
Watches were used for navigation. They also had both minute and second hands in those days; you can verify the latter by looking at them on ebay.
by scottlocklin 7y ago
Watches were used for navigation. They also had both minute and second hands in those days; you can verify the latter by looking at them on ebay.
- wil421 7y agoJust to add watches were extremely important for sailing. Maybe as important as a compass. You need an accurate clock to calculate longitude at sea. Here’s a book I’ve been meaning to read about an eccentric guy who solved the problem[1]. [1]https://en.m.wikipedia.org/wiki/Longitude_(book) https://en.m.wikipedia.org/wiki/Longitude_(book)