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Jacob & Co. Presents World’s First 4-Axis Tourbillon Astronomia Revolution 4th Dimension for Only Watch 2023

Jacob and Co Astronomia Revolution 4th Dimension

Only Watch is one of my favourite watch events in the calendar. It’s a charity auction that takes place once every two years and sees top watchmakers from around the world create unique, 1-of-1 watches that are sold to raise money for Duchenne Muscular Dystrophy research. For 2023 the auction is taking on a super colourful theme, which is something that the first watch we’re taking a look at has certainly taken to heart. This is the Jacob & Co. Astronomia Revolution 4th Dimension.

As a quick note, the watch is technically double signed as a Jacob & Co. x Concepto Watch Factory timepiece with the Concepto Watch Factory being J&Co.’s main movement partner. It’s a nice way for the brand to celebrate the groundbreaking work Concepto has done this year with models like the Astronomia Revolution and now the Astronomia Revolution 4th Dimension.

Jacob and Co Astronomia Revolution 4th Dimension

It’s perhaps obvious from the names, but the 4th Dimension is essentially a piece unique version of the earlier Astronomia Revolution that takes the concept of the world’s fastest satellite tourbillon and pushes it a step further. It’s powered by the manual wind JCAM 54 movement with 36-hour power reserve. It swaps the double axis tourbillon of the original Revolution for a triple axis tourbillon, which when combined with the rotation of the arm makes this the world’s first quadruple axis tourbillon.

Breaking down what the four axis of movement are is a little to describe because all four of the rotations are happening simultaneously. The most obvious rotation is the satellite arm moving around the dial, which happens once every 60 seconds. Then, there’s the regular tourbillon rotation also every 60 seconds. On top of that, the tourbillon cage is also rotating in-line with and perpendicular to the satellite arm in intervals of 18 and 15 seconds. It looks pretty spectacular, especially housed within the brightly coloured case. And then, as if that wasn’t enough, it features a patent pending constant force mechanism as well, ensuring a consistent flow of power through the mechanism.

Jacob and Co Astronomia Revolution 4th Dimension
Jacob and Co Astronomia Revolution 4th Dimension

That case is 47mm in diameter and made from rose gold but the cool element is the base below the main satellite (technically the movement backplate). It consists of 35 gemstones of contrasting colours each with a unique and non-standard cut set so that the culet side is on display. It takes all the traditional ideas of gem setting and throws them out the window to create an over the top stain-glass window kind of appearance. It reminds me of the special effects from the Dr Strange films, which is perhaps another reason the name 4th Dimension is appropriate. The gems themselves are a combination of hessonite garnet, yellow citrine, blue sapphire, tsavorite, rhodolite garnet, topaz and pyrope garnet.

Jacob and Co Astronomia Revolution 4th Dimension

It’s big, it’s bombastic, it’s frankly a little bit insane… it’s everything you could ask for from a piece unique Jacob & Co. for charity. While I sometimes critique J&Co. for being too ostentatious and too over the top, when it comes to Only Watch there is no such thing. This is a chance for brands to go a little wild and do something crazy or experimental. The world’s first 4-axis tourbillon and a precious gem version of crazy paving certainly qualifies as a great Only Watch timepiece. All Only Watch watches will be sold at auction on November 5th.

Price & Specs:

  • Model: Jacob & Co. Astronomia Revolution 4th Dimension
  • Case/dial: 47mm diameter x 27mm thickness, 18k rose gold case, engraved caseback, skeletonised dial with blue polycarbonate, rose gold structure set with 35 bespoke cut gemstones (hessonite, garnet, yellow citrine, blue sapphire, tsavorite, rhodolite garnet, topaz, pyrope garnet)
  • Water resistance: 30m (3 bar)
  • Movement: Jacob & Co. calibre JCAM 54, manual winding, 485 parts
  • Frequency: 21,600 vph (3 Hz)
  • Power reserve: 36h
  • Functions: Hours, minutes, tourbillon
  • Strap: Blue alligator leather with 18k rose gold buckle
  • Price/availability: Unique piece

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About the author

Michael Sonsino

As Digital Editor for Oracle Time, Michael needs an eye for detail, which makes it a good thing that his twin joys in life are miniatures and watches. He's a lifelong fan of fine timepieces, especially those of a more historic nature - if it has a twist of Art Deco, all the better. Recent purchase: Seiko Prospex 1959 Alpinist Modern Re-Interpretation. Grail watch: Vacheron Constantin Historiques American 1921.