Astronomia Four-Axis Tourbillon Opal AT180.40.AB.UB.A

Description of the Jacob & Co Astronomia Four-Axis Tourbillon Opal 

The Jacob & Co Astronomia Four-Axis Tourbillon Opal AT180.40.AB.UB.A is an extraordinary haute horlogerie timepiece that combines Jacob & Co’s radical multi-axis mechanical engineering with the natural beauty of opal. Crafted from 18K rose gold with a single-block sapphire caseband, the 47 mm watch creates a transparent showcase around its constantly moving three-dimensional mechanism. The reference AT180.40.AB.UB.A is confirmed as the Opal configuration of the Astronomia Four-Axis Tourbillon.

At its heart is the hand-wound Jacob & Co JCAM54 caliber, composed of 485 components and engineered around a vertical rotating platform and flying triple-axis tourbillon. Together, these mechanisms create four separate axes of movement, complemented by a constant-force device and an off-centered hours-and-minutes display controlled by a differential.

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 a remarkable fusion of avant-garde Swiss watchmaking, precious materials and mechanical artistry. The Opal edition is especially distinctive for its natural stone decoration, which gives each viewing angle a different visual character beneath the transparent sapphire architecture.

Unlike a conventional tourbillon watch, the Astronomia Four-Axis produces movement across several planes simultaneously. The complete central platform rotates every 60 seconds while its flying triple-axis tourbillon performs three additional rotations. This complex mechanical choreography makes the AT180.40.AB.UB.A particularly appealing to collectors seeking rare Jacob & Co watches and exceptional high-end timepieces in the UAE.

Design and Craftsmanship

The Astronomia Four-Axis Tourbillon features a substantial 47 mm case measuring 27 mm high, constructed from 18K rose gold and a single-block sapphire caseband. A curved anti-reflective sapphire crystal provides an expansive view of the vertical mechanical architecture from the front and sides.

The opal execution adds a decorative natural-stone character to the mechanical display, contrasting with the warm 18K rose gold and transparent sapphire construction. An off-centered skeletonized subdial with applied 5N rose gold indexes and matching Dauphine-style hands provides the hours-and-minutes indication.

Movement and Performance

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

Its vertical central platform completes a full revolution every 60 seconds. The flying triple-axis tourbillon simultaneously performs rotations every 60 seconds, 18 seconds and 15 seconds, creating the watch's four-axis mechanical architecture when combined with the platform rotation.

A constant-force device operating at a 1/6-second frequency regulates energy delivery, while a differential system maintains the correct orientation of the off-centered hours-and-minutes display as it travels around the central axis.

Features and Complications

• Four-axis tourbillon architecture
• Flying triple-axis tourbillon
• Vertical central platform rotating every 60 seconds
• First tourbillon axis rotating every 60 seconds
• Second tourbillon axis rotating every 18 seconds
• Third tourbillon axis rotating every 15 seconds
• Constant-force device with 1/6-second frequency
• Off-centered hours and minutes
• Differential-controlled orbital time display
• Opal decorative execution
• Hand-wound mechanical movement
• Single-block sapphire caseband
• Water resistance up to 30 meters
• Pièce Unique

Specifications

Case

• Material: 18K rose gold
• Diameter: 47 mm
• Thickness: 27 mm
• Caseband: Single-block sapphire crystal
• Crystal: Curved anti-reflective sapphire crystal
• Caseback: 18K rose gold
• Water Resistance: 30 meters / 3 ATM
• Edition: Pièce Unique
• Reference: AT180.40.AB.UB.A

Dial

• Decorative Theme: Opal
• Style: Three-dimensional orbital display
• Subdial: Skeletonized
• Indexes: Applied 5N rose gold
• Hands: 5N rose gold Dauphine-style hands
• Display: Off-centered hours and minutes
• Distinctive Elements: Opal decoration and four-axis rotating tourbillon architecture

Bracelet/Strap

• Material: Alligator leather
• Style: Luxury dress strap
• Clasp Type: Deployant buckle
• Clasp Material: 18K rose gold
• Adjustability: Secure adjustable fit

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

• Caliber: Jacob & Co JCAM54
• Mechanism: Manual winding
• Components: 485
• Power Reserve: Approximately 36 hours
• Frequency: 21,600 vibrations per hour / 3 Hz
• Central Platform: Full revolution every 60 seconds
• Tourbillon: Flying triple-axis tourbillon
• First Axis: Rotation every 60 seconds
• Second Axis: Rotation every 18 seconds
• Third Axis: Rotation every 15 seconds
• Constant Force: 1/6-second frequency
• Functions: Off-centered hours and minutes
• Time Display: Differential-controlled
• Certification: Swiss Made
• Edition: Pièce Unique