Jacob & Co. Astronomia Dragon Green Dragon in Rose Gold
Movement
Hand-wound
Size
44 mm

Overview

A hand-painted sculpture in a vertical movement

The Jacob & Co. Astronomia Dragon, reference AS312.40.AB.AB.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 green 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, painted green.

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

Case material18-carat rose gold and sapphire side panes
MovementJCAM42, hand-wound
CollectionAstronomia

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 green 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

Astronomia Dragon
ReferenceAS312.40.AB.AB.A
CollectionAstronomia
CalibreJCAM42
MovementHand-wound
FunctionsVertical 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 reserve48 hours
Frequency28,800 vph (4 Hz)
Components295
Case dimensions44 mm
Case height21 mm
Case material18-carat rose gold and sapphire side panes
CrystalCurved Anti-Reflective Sapphire Crystal
Case back18-carat Rose Gold
Water resistance30 m (3 atm)
DialTitanium, Openworked Hour and Minute Dial
HandsBlued, Exclusive Jacob & Co. Shape
StrapBlue alligator leather
Clasp18-carat Rose Gold and Titanium Deployant Clasp
Limited edition9 pieces
Crafted miniature18-carat Rose Gold, Hand-cast, Hand-polished, Hand-painted Green Dragon with Ruby Eyes

Buying with HYPA

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  • Registered Australian dealerHYPA International Pty Ltd · Registered Victorian second-hand dealer, Registration No. SHD-0018017.
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Astronomia Dragon · Ref. AS312.40.AB.AB.A

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