I wanted to showcase one of the most spectacular watches I've ever seen - the Jacob & Co Astronomical Tourbillon. I want to ask you, if you have the possibility, to meet this watch. You will never regret it.
The first version launched with an 18K rose gold case, 50mm in diameter and 25mm in thickness, has a sapphire aperture on the side for unobstructed views. The caseback is wound and time-setting by means of two 18K rose gold lifting and rotating "bows". The sky layer is made of pure aventurine and 18k rose gold. The top crystal is a special domed anti-reflection treated sapphire.
Frontally visible: central hour and minute hands, rotating shafts every 20 minutes and a faceted spherical diamond (288 facets of a 1 carat cut diamond - exclusive to Jacob & Co.) rotating on 2 shafts for 60 seconds, on 2 shafts Magnesium-painted globe and gravitational tourbillon forming a cage that rotates in 3 axes: 1st axis in 60 seconds, 2nd axis in 5 minutes, 3rd axis - central axis at 20 within minutes. The tourbillon has the J&Co logo as part of the frame - a nice touch, rather than ruining the Aventurin background with text. Making this possible is a patented differential gear system.
The dial is made of magnesium - an unusual choice for a dial, but it adds weight to the gear system and keeps everything in balance. Lacquered Roman numerals at 12/3/6 and 9 o'clock. The hands are gun blue, angled and polished.
An exclusive Jacob & Co. manual-winding movement was created for this watch: JCAM10 – Triaxial gravity tourbillon with flat hairspring. With a diameter of 40 mm and a height of 17.15 mm, this movement consists of 365 components, 42 jewels and has a power reserve of 60 hours (low beat frequency: 21600 vph or 3 Hz) – impressive.
As expected, the finishes are impressive: hand-slanted and polished cleats and bridges, all with brushed sides, rounded texture and polished sinks. The screws are polished, the barrel has a round texture, and the pinion used is tapered. As bearings, 4 mechanical ball bearing units are used. The main material used is titanium – which makes the movement very strong, but also more difficult to manufacture, as titanium is much harder than gold or steel.
This edition is a limited edition and comes with an alligator leather strap and 18K rose gold folding clasp. The white 18K gold version has the same characteristics as the rose gold version, the only difference is the gold in the white.
For those who prefer more bling, there is the Astronomia Tourbillon Baguette.
The background and lugs of this version are set with 16-carat, 342 baguette-cut diamonds - an invisible set. This version is crafted in 18k rose gold. The 18k rose gold version uses orange sapphires for the background and diamond lugs, while the 18k rose gold uses only orange sapphires.