Jacob & Co.
Billionaire Double Tourbillon Angel-Cut
The brand's page traces the Billionaire to 2016, a one-off skeleton tourbillon set entirely with very large diamonds, followed by several variations. Monochrome dates the line's debut to 2015. Neither source explains the difference. The previous Double Tourbillon used emerald-cut stones.
Black treated diamond
Specification · Black treated diamond
Case
- Shape
- rectangular (Billionaire)
- Size
- 54 × 40 mm
- Height
- 11 mm
- Crystal
- anti-reflective sapphire
- Caseback
- sapphire
- Water Resistance
- 30 m / 3 ATM
- Material
- 18K black gold
- Gem Setting
- 98 black treated Angel-cut diamonds (51.13 ct) and 1 black treated rose-cut diamond (1 ct)
Movement
- Calibre
- JCAM50
- Type
- skeleton, hand-wound
- Functions
- hours, minutes; two one-minute flying tourbillons
- Power Reserve
- 72 hours
- Frequency
- 21,600 vph (3 Hz)
- Components
- 460
- Notable
- two barrels, each driving a flying tourbillon; the two tourbillons' rates are combined through a differential that drives the hands; the openworked structure sits under a fully diamond-set brick-wall dial with two round openings onto the tourbillons
Details
- Dial
- 18K black gold, invisibly set with 88 black treated Angel-cut diamonds (11.07 ct) and 80 black treated emerald-cut diamonds (1.14 ct); blued skeletonised hands
- Straps
- black alligator leather; 18K rose gold deployant buckle invisibly set with 30 black treated Angel-cut diamonds (15.72 ct)
Price
- Price
- No price is listed on Jacob & Co.'s page for this edition. (as of Sep 2026)
