| Quick specs Graham Geo. Graham Orrery Tourbillon Price: $ 330,000 | approx. € 302.000 | approx. £ 258,000 Size: 48 mm Reference: 2GGBP.U01A  |
You might know Graham from their big Chronofighter pilot models, with the crown on the left and a complicated trigger system for the chronograph. However, George Graham, the British founder of the company, in 1695, is also credited as the inventor of the orrery. According to the company Graham in 1713, according to Wikipedia around 1704, and together with Thomas Tompion. Anyway, the roots of the brand are closer to a planetarium than a jetfighter. Therefor the launch of the Graham Geo. Graham Orrery Tourbillon isn’t as strange as it seems.
In 2013, the first Graham Geo. Graham Orrery Tourbillon was launched. A manual orrery tourbillon exclusively crafted for Graham by Christophe Claret, limited to 20 pieces, with reference 2GGBP.B01A. This new version has an updated dial with new materials to depict the heavenly bodies. The old one has small spherical gemstones on a black dial. This new one has a blue dial and its mechanical solar system contains genuine fragments of planets.
The Graham Geo. Graham Orrery Tourbillon has a 300-year calendar
Four celestial elements are depicted. The Moon is from NWA4881 meteorite, the Earth from Kingman turquoise, Mars is a piece of Tissint meteorite and the Sun is from pink gold. The whole system has a 100-year calendar with two additional graduations of 100 years, 300 years in total. At the see-through case back is the 100-year scale with planet correction indicators: 7 years for the Moon, 25 years for Mars and 1,156 years for the Earth.
On the dial, there are three scales: for the hours and minutes, for the Gregorian calendar (365.25 days) and for the Zodiac scale (12 astrological signs). A miraculous presentation of our solar system. And unique as well, as there are only a few brands with a planetarium. Van Cleef & Arpels has some, Christiaan Van Der Klaauw as well and Ulysse Nardin (already in 1988). And even more unique as the Graham Geo. Graham Orrery Tourbillon is limited to 8 pieces.
The 2017 Graham Geo. Graham Orrery Tourbillon with reference 2GGBP.U01A and the 2013 Graham Geo. Graham Orrery Tourbillon with reference 2GGBP.B01A
If you are interested in watches in this price range (roughly between 250,000 and 500,000 US dollars or euros) take a look here.
technical data Graham Geo. Graham Orrery Tourbillon |
| Reference: 2GGBP.U01A |
| Movement: Graham G1800 (manufacture Christophe Claret) | Hand-wound | Frequency: 21,600 vph (3 Hz) | Jewels: 35 | Hand-engraved tourbillon | Two barrels | Hours, minutes, orrery with mechanical solar system, year counter | Power-reserve: 72 hours |
| Case & dial: 48 mm | 18k pink gold | Thickness: 17.6 mm | 18k pink gold bezel and crowns | Dome sapphire crystal (semi-spherical), anti-reflective coating on both sides | See-through sapphire crystal case back | Blue lacquered dial | Solar system with the Moon, Earth, Mars and Sun | Tourbillon with cabochon close set diamond at the center | Off-center skeleton 18 k pink gold hands with white sper-luminova | Water-resistance: 5 ATM / 5 bar / 50 meters / 165 feet |
| Strap: Hand-sewn blue alligator leather | 18k pink gold folding buckle |
| Price Graham Geo. Graham Orrery Tourbillon: $ 330,000 | approx. € 302.000 | approx. £ 258,000 |
| Website: www.graham1695.com |