- Movement
- Hand-wound
- Size
- 45.5 mm
Overview
A vertical platform that turns in 10 minutes
The Jacob & Co. Astronomia Solar Constellations, reference AS900.40.BD.BD.A, in an 18-carat rose gold case with sapphire side panes, 45.5 mm across and 21 mm high. It is set with 144 baguette white diamonds (≈8.15 ct) and has an openworked titanium hour and minute dial, on a blue alligator leather strap with an 18-carat rose gold folding clasp.
A vertical platform rises from the dial and makes a full turn every 10 minutes. Jacob & Co. says this constant motion drives every function and indication of the movement. The base beneath the platform turns counterclockwise, also in 10 minutes.
Hand-wound calibre JCAM19 has 447 components and a 48-hour power reserve. A flying tourbillon hangs at the end of one satellite arm and turns in one minute. Carried by the platform, it gains a second axis with a 10-minute period. The hour and minute dial sits on another arm. Jacob & Co. describes a patented differential that turns the dial against the platform at the same speed, so it stays upright and readable. A magnesium Earth globe turns in 60 seconds. This version is limited to 18 pieces.
Key details
Design and engineering
- Platform and tourbillonThe platform turns once in 10 minutes and carries a flying tourbillon that turns in one minute.
- Gem-setting144 baguette-cut white diamonds (≈8.15 ct).
- DialAn off-centred, openworked hour and minute dial in titanium, with blued hands.
- Platform base18-carat rose gold set with 238 baguette-cut white diamonds (≈7.04 ct).
- 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 JCAM19
- Hand-wound
- 447 components
- 48-hour power reserve
- 28,800 vph (4 Hz)
- Flying tourbillon, one rotation in 1 minute
- Differential hour and minute dial
The reference
Technical specifications
| Reference | AS900.40.BD.BD.A |
|---|---|
| Collection | Astronomia |
| Calibre | JCAM19 |
| Movement | Hand-wound |
| Functions | Vertical Rotating Central Platform: Rotation in 10 minutes; Flying Tourbillon: Rotation in 1 Minute; Off-centered Hour and Minute Dial with Differential; Rotating Base: Counterclockwise Rotation in 10 minutes; Rotating Magnesium Earth Globe: Rotation in 60 Seconds |
| Power reserve | 48 hours |
| Frequency | 28,800 vph (4 Hz) |
| Components | 447 |
| Case dimensions | 45.5 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) |
| Gem-setting | Set with 144 Baguette White Diamonds (≈8.15 ct.) |
| Dial | Titanium, Openworked Hour and Minute Dial |
| Platform base | 18-carat Rose Gold set with 238 Baguette White Diamonds (≈7.04 ct.) |
| Hands | Blued, Exclusive Jacob & Co. Shape |
| Strap | Blue alligator leather |
| Clasp | 18-carat Rose Gold Folding Clasp |
| Limited edition | 18 pieces |
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.
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