Royal Observatory Greenwich John Harrison's H4-Inspired Chrome Pocket Watch Ship Plans Telescopes were useful at sea

Telescopes were useful at sea to spot potential dangers (be it enemy ships or rocks) from a distance

The clear plastic case for the clock means you can see how each piece interacts with the other cogs to show exactly how a mechanical clock works

In England

I took it as a panorama with many vertical shots because I wanted good light for the foreground and the comet

Royal Observatory Greenwich John Harrison's H4-Inspired Chrome Pocket Watch Ship Plans Telescopes were useful at seaA stunningly crafted, chrome plated half double hunter pocket watch inspired by John Harrisons world changing chronometer. This pocket watch is one of our luxurious timepieces from Royal Observatory Greenwich, the home of Greenwich Mean Time. Our exclusive Royal Observatory Greenwich John Harrison's H4 Inspired Chrome Pocket Watch is part of our gift collection inspired by Time & the Prime Meridian.