Graham Limited Edition Geo.Graham The Moon Watch Review


Graham has presented Geo.Graham The Moon: a limited edition timepiece that combines a flying tourbillon with a high-precision retrograde moon-phase perpetual function.

Geo.Graham The Moon is a limited edition of just 10 pieces. The name of the watch pays tribute to George Graham, who regularly observed the moon while creating his timepieces, and used his fascination with the universe to inspire his watchmaking.
The unique watch features a moon-phase cycle calculated on the Moon's exact synodic period for a duration of 122 years. The synodic period equals 29 days, 12 hours, 44 minutes and 2.9 seconds, at the end of which the retrograde mechanism ensures the Moon jumps back to the start of a new cycle. Once correctly set, the high-precision moon phase only requires adjustment once every 122 years, with a single push on the corrector.
The watch weighs just 0.07 grams, and is hand painted by local craftsmen in Le Locle. A double absorber system was developed exclusively for Graham by Christophe Claret in Locle, in order to avoid damage on the lunar disc and attenuate the retrograde fall.

Geo.Graham The Moon has a blue dial adorned with 45 diamonds (0.24 cts) representing constellations such as Camelopardalis, Perseus, Cassiopeia, Ursa Major and Ursa Minor. The centre becomes the North Star's position. The timepiece is powered by calibre G1769 high precision mechanical movement, and the complex flying tourbillon rotates on a ball bearing to substitute rolling for sliding friction.

The 46 mm case is made of 18K pink gold and has faceted horns, with a Milky Way sapphire painted bezel. The dial features a hand painted moon and pink gold skeleton hands. It has a domed sapphire crystal with anti-reflective coating on both sides, and a see-through sapphire crystal case back with a hand-engraved serial number. The right hand control crown is decorated with a sapphire stone, and the watch comes with a blue croco strap.