Back in 2013, Graham released a very avant-garde astronomical watch known as the Graham Tourbillon Orrery. Priced at over $ 300,000, this planetarium-style watch had an extremely complicated movement produced for Graham by Christophe Claret.
The article Graham Geo.Graham Orrery Tourbillon Astronomical Watch With Pieces Of The Moon, Mars, & Earth first appeared on aBlogtoWatch and was written by Ariel Adams.
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