
- Movement
- Hand-wound
- Size
- 44 mm
Overview
A hand-painted sculpture in a vertical movement
The Jacob & Co. Astronomia Dragon, reference AS312.40.AB.AD.A, in an 18-carat rose gold case with sapphire side panes, 44 mm across and 21 mm high. It has an off-centred, openworked titanium dial and a hand-painted rose gold dragon with ruby eyes, on a blue alligator leather strap with an 18-carat rose gold and titanium deployant clasp.
This version carries a single dragon in the colour of the rose gold, with ruby eyes.
Jacob & Co. fitted a hand-made sculpture into the vertical Astronomia structure. The figure is cast, finished and painted by hand, and it coils around the movement and between its satellites. Jacob & Co. describes its dragons as wingless and inspired by the Asian tradition.
Jacob & Co. says the vertical Astronomia movement normally rotates, and that for this model it stays fixed so the sculpture fits within its structure. Hand-wound calibre JCAM42 has 295 components and a 48-hour power reserve. Its flying tourbillon cage turns once a minute, and the Earth globe turns once in 60 seconds. This version is limited to 9 pieces.
Key details
Design and engineering
- DialAn off-centred, openworked titanium dial for the hours and minutes, with blued hands in a shape of Jacob & Co.’s own.
- Earth globeA magnesium globe that turns once in 60 seconds.
- MoonA yellow diamond with the Jacob Cut, 288 facets (≈2.18 ct).
- MiniatureA dragon in 18-carat rose gold, hand-cast, hand-polished and hand-painted, with ruby eyes.
- Case18-carat rose gold with sapphire side panes, a curved anti-reflective sapphire crystal and an 18-carat rose gold caseback. Water resistant to 30 m.
Calibre JCAM42
- Hand-wound
- 295 components
- 48-hour power reserve
- 28,800 vph (4 Hz)
- Vertical movement with three arms
- Flying tourbillon cage, one turn every minute
The reference
Technical specifications
| Reference | AS312.40.AB.AD.A |
|---|---|
| Collection | Astronomia |
| Calibre | JCAM42 |
| Movement | Hand-wound |
| Functions | Vertical Movement with 3 Arms; Flying Tourbillon Cage (1 turn/min); Off-centered Hour and Minute Dial; Rotating Magnesium Earth Globe: Rotation in 60 Seconds; Yellow Diamond Jacob Cut (288 facets: ≈2.18 ct.) |
| Power reserve | 48 hours |
| Frequency | 28,800 vph (4 Hz) |
| Components | 295 |
| Case dimensions | 44 mm |
| Case height | 21 mm |
| Case material | 18-carat rose gold and sapphire side panes |
| Crystal | Curved Anti-Reflective Sapphire Crystal |
| Case back | 18-carat Rose Gold |
| Water resistance | 30 m (3 atm) |
| Dial | Titanium, Openworked Hour and Minute Dial |
| Hands | Blued, Exclusive Jacob & Co. Shape |
| Strap | Blue alligator leather |
| Clasp | 18-carat Rose Gold and Titanium Deployant Clasp |
| Limited edition | 9 pieces |
| Crafted miniature | 18-carat Rose Gold, Hand-cast, Hand-polished, Hand-painted Rose Gold Dragon with Ruby Eyes |
Buying with HYPA
Purchase with confidence
- Warranty card status disclosed for every piece we sell
- Free insured delivery within Australia · international quoted
- Payment by bank transfer
- Registered Australian dealerHYPA International Pty Ltd · Registered Victorian second-hand dealer, Registration No. SHD-0018017.
- Direct specialist supportSpeak with the HYPA team before, during and after the purchase.
- Rated 5.0 on Google · 11 reviewsFrom clients of HYPA International on Google. Read the reviews


