Astronomia Four-Axis Tourbillon Rose Gold Green AT180.40.AB.AC.A

Description of the Jacob & Co Astronomia Four-Axis Tourbillon Rose Gold Green AT180.40.AB.AC.A

The Jacob & Co Astronomia Four-Axis Tourbillon Rose Gold Green AT180.40.AB.AC.A is an extraordinary haute horlogerie creation combining a quadruple-axis tourbillon, gemstone artistry and the three-dimensional architecture that defines the Astronomia collection. Crafted from 18K rose gold with a single-block sapphire caseband, the watch measures an imposing 47 mm in diameter and 27 mm in height, providing an almost unobstructed view of its constantly moving mechanical display.

At its heart is the hand-wound Jacob & Co JCAM54 caliber, composed of 485 components. The movement incorporates a vertical rotating central platform, a flying triple-axis tourbillon and a constant-force mechanism. A base of faceted green gemstones provides a vivid backdrop beneath the rotating architecture, contrasting beautifully with the warm 18K rose gold construction. Reference AT180.40.AB.AC.A is limited to just 6 pieces worldwide.

Why the Jacob & Co Astronomia Four-Axis Tourbillon Appeals to Luxury Watch Collectors in the UAE

For collectors in Dubai and across the UAE, the Jacob & Co Astronomia Four-Axis Tourbillon represents the theatrical and technically ambitious side of modern Swiss watchmaking. Rather than placing its movement beneath a conventional dial, Jacob & Co transforms the entire interior of the watch into a moving mechanical stage.

The Rose Gold Green edition is especially distinctive because its green gemstone base reflects light through the transparent sapphire caseband and around the rotating rose-gold movement. With four simultaneous rotational axes, an off-centered time display and production restricted to only six pieces, the AT180.40.AB.AC.A stands out among Jacob & Co watches in the UAE, complicated Swiss watches and exceptional high-end timepieces.

Design and Craftsmanship

The Astronomia Four-Axis Tourbillon features a 47 mm case measuring 27 mm in height, constructed from 18K rose gold and a transparent single-block sapphire caseband. A curved anti-reflective sapphire crystal covers the upper surface, creating panoramic visibility of the movement from both the front and sides.

Beneath the rotating mechanism sits a base of faceted green gemstones, creating the defining visual identity of this particular reference. The off-centered skeletonized time dial features red polycarbonate detailing, 5N applied indices and 5N rose-gold Dauphine hands. The contrast of green gemstones, transparent sapphire and rose gold creates a highly distinctive three-dimensional appearance.

Movement and Performance

Powering the watch is the Jacob & Co JCAM54, a manually wound mechanical caliber comprising 485 components. It operates at 21,600 vibrations per hour / 3 Hz and provides approximately 36 hours of power reserve.

Its defining complication is the quadruple-axis tourbillon architecture. The entire vertical central platform completes one revolution every 60 seconds, while the flying tourbillon rotates through three additional axes in 60 seconds, 18 seconds and 15 seconds. A constant-force device releases energy every 1/6 of a second, helping regulate the delivery of energy to the tourbillon.

The off-centered hours-and-minutes dial incorporates a differential system that keeps the time display upright and readable while the platform rotates around the watch.

Features and Complications

• Quadruple-axis tourbillon architecture
• Flying triple-axis tourbillon
• 60-second vertical rotating central platform
• First tourbillon axis: 60-second rotation
• Second tourbillon axis: 18-second rotation
• Third tourbillon axis: 15-second rotation
• Constant-force device with 1/6-second frequency
• Off-centered hours and minutes with differential
• Hand-wound JCAM54 mechanical movement
• 485 movement components
• Approximately 36-hour power reserve
• Green gemstone base
• Single-block sapphire caseband
• 18K rose gold construction
• Water resistance up to 30 meters / 3 ATM
• Limited edition of 6 pieces

Specifications

Case

• Material: 18K rose gold and single-block sapphire caseband
• Diameter: 47 mm
• Height: 27 mm
• Crystal: Curved anti-reflective sapphire crystal
• Caseback: 18K rose gold
• Water Resistance: 30 meters / 3 ATM
• Limited Edition: 6 pieces
• Reference: AT180.40.AB.AC.A

Dial

• Base: Faceted green gemstones
• Subdial: Skeletonized
• Subdial Detail: Red polycarbonate
• Indices: 5N applied indices
• Hands: 5N rose gold Dauphine hands
• Display: Off-centered hours and minutes
• Time Display Mechanism: Differential system
• Distinctive Element: Rotating three-dimensional Astronomia architecture above green gemstones

Bracelet/Strap

• Material: Alligator leather
• Style: Luxury leather strap
• Clasp Type: Deployment buckle
• Clasp Material: 18K rose gold
• Design: Coordinated with the rose-gold case

Movement (Jacob & Co Astronomia Four-Axis Tourbillon AT180.40.AB.AC.A)

• Caliber: Jacob & Co JCAM54
• Mechanism: Manual winding
• Components: 485
• Power Reserve: Approximately 36 hours
• Frequency: 21,600 vph / 3 Hz
• Central Platform Rotation: 60 seconds
• Tourbillon: Flying triple-axis tourbillon
• First Axis: 60 seconds
• Second Axis: 18 seconds
• Third Axis: 15 seconds
• Constant Force: Energy release every 1/6 second
• Functions: Off-centered hours and minutes with differential
• Certification/Origin: Swiss Made