![Arnold & Son Grand Moon Tourbillon Arnold & Son Grand Moon Tourbillon](http://uniquewatchguide.com/image-files/astronomical-watch-arnold-and-son-L.jpg)
Arnold & Son are British watchmakers founded in 1764, maker of the first ever pocket chronometer they became the leading supplier to the Royal Navy.
Their “Grand Moon Tourbillon” astronomical watch combines the complex beauty of a tourbillon with its celestial design.
It uses a retrograde, hand painted moon phase that calculates the phase of the moon based on the moon’s exact synodic period.
Other celestial touches include a movement decorated with diamond constellations and a power reserve of 96 Hours.
Price:$295,750
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