The Bugatti Tourbillon’s automaton is cut from a single block of transparent sapphire: sixteen cylinders drilled for sixteen titanium pistons on a single-axis crankshaft. Press the pusher in the crown and the pistons run in sequence for 20 seconds. The Sapphire Crystal edition uses sapphire for the case as well. Its caseback, caseband and bezel are each cut from a separate block, exposing the engine from the front, the sides and the back.

Close view through the sapphire case: the transparent V16 engine block with its row of titanium pistons, the blue exhaust manifolds, the tourbillon cage, the retrograde time display and the dual power-reserve counter
Photo · LMC FlowThe engine block and blue manifolds take the centre of the frame; the tourbillon sits beside them.

The display around the engine

The calibre JCAM55 replaces a conventional dial with three displays arranged around the engine:

  • Hours and minutes: two retrograde displays, with jumping hours. Each hand sweeps a 270-degree arc before returning to zero.
  • Tourbillon: a flying cage completing one cycle in 30 seconds, which the page calls the fastest the brand has made.
  • Two reserves in one counter: one for the movement and one for the automaton. The latter stores 20 full animation sequences on a single wind.

The movement runs at 3 Hz and contains 557 components. The official page contradicts itself on its power reserve:

  • Specification table: 80 hours.
  • Descriptive text: 48 hours.

The source gives no basis for choosing one over the other.

The Bugatti Tourbillon Sapphire Crystal seen from above on the wrist, showing the case outline, the sapphire crown and the louvred blue strap
Photo · LMC FlowFrom above, the internal knurling of the sapphire-and-metal crown becomes visible.

Blue inside a clear case

In daylight the case edges recede in the frames. Blue appears on the manifolds, the counter rims and the louvred rubber strap. The red Bugatti oval is the only strong accent in another colour.

The crown combines metal and sapphire with knurling on the inside. The tourbillon sits to the left. The retrograde time display and the dual power-reserve counter share the upper half of the case.

The Bugatti Tourbillon Sapphire Crystal seen straight down on a wrist, the engine block along the centre and the two counters at the top
Photo · LMC FlowThis angle makes the display hierarchy clear: time and reserves above, engine block through the centre.

Three edition statements, three scopes

The available sources do not make three claims about the same reference. They speak at different scopes:

  • The Clear / Blue reference’s specification table lists six pieces.
  • The product-group description, covering Clear / Blue, Clear and Clear / Green, says “unique pieces only”.
  • Revolution’s June report describes the first series at model level as two unique pieces, one green and one blue.
The watch under a blue shirt cuff, the transparent case catching daylight
Photo · LMC FlowIn daylight the case edges recede; the engine block and the blue strap carry the frame.

Price and availability

Production. The official Clear / Blue page's specification table states a limited edition of 6 pieces, while the same page's own description calls the model "unique pieces only" (both read 27 August 2026). Press coverage of June 2026 described the first series as two unique pieces, one green and one blue. The statements are kept apart and dated.

Retail. $1,200,000, as of Jun 2026 (as reported by Revolution, 2 Jun 2026; tax/duty/delivery basis unstated)

Revolution reported USD 1.2 million per piece in June 2026, with no tax, duty or delivery basis.

Specification

Case

Shape
Bugatti (tonneau-derived)
Size
55 × 44 mm
Height
15 mm
Material
solid sapphire crystal with gold details; caseback, caseband and bezel each cut from a block, over 800 hours of machining per the page
Water Resistance
30 m / 3 ATM

Movement

Calibre
JCAM55
Type
hand-wound, with automaton
Functions
off-centred jumping retrograde hours and retrograde minutes; 30-second flying tourbillon; movement and automaton power reserves; V16 engine-block automaton in transparent sapphire
Power Reserve
80 hours (the page's specification table; the page's own descriptive text says 48 hours - an internal conflict the brand has not resolved, 27 Aug 2026)
Frequency
21,600 vph (3 Hz)
Components
557
Jewels
74
Notable
the automaton is a single block of transparent sapphire with 16 drilled cylinders housing 16 titanium pistons on a single-axis crankshaft; it stores 20 full animation sequences of 20 seconds each on one wind; the retrograde hands each sweep a 270-degree arc (all per the page)

Details

Dial
none in the conventional sense; the page describes the engine block and two counters as the display
Straps
rubber strap with louvers; gold and titanium deployment buckle

Price

Retail
$1,200,000, as of Jun 2026 (as reported by Revolution, 2 Jun 2026; tax/duty/delivery basis unstated)

Sources

About this article

Written from Jacob & Co.'s official model page for the Clear / Blue execution. The Crown Journal did not independently test this watch; the figures are the brand's. The photographs are ours, taken in April 2026, and are visually consistent with the Clear / Blue execution; a photograph cannot prove an engraved reference.

Accountable editor
Jimmy Jonevret
Published
Photography
LMC Flow