Inversion Principle Red Gold is a limited edition of 10 pieces in red gold.

While Inversion Principle is first and foremost a very exclusive haute horlogerie timepiece, subtle elements and mechanisms discreetly feature key attributes of the AK47. Each timepiece incorporates a plate on the back made from the transformed steel of a destroyed assault weapon.

Inversion Principle: Orbiting on high above the movement, the central 3-minute flying tourbillon dominates the three-dimensional dial and mesmerizes the eye. Three second-hands, equally spaced 120° apart around the tourbillon cage, arc sedately across the seconds-scale above the tourbillon and ‘Fonderie 47’: ‘Sedately’ because tourbillon revolves at just 1/3 of the speed of a traditional one-minute tourbillon.

While only one second-hand is visible at any time − the other two are hidden under the gold rifle-sight inspired frame set into the sapphire crystal − their positions are revealed by blued screws joining the outer tourbillon cage and inner three-arm hub.

The long 6-day power reserve has both a lateral indication via a sapphire window set into the left side of the case band and a second indication visible through the display back. The display back reveals the stunning sunray guilloche pattern radiating out from the ratchet wheel, which is capped by a dark plate of transformed steel from a destroyed AK47.

The plate is in the form of the Fonderie 47 brand symbol and rotates as the watch is wound. ’56-3701F42′, the serial number of the destroyed weapon the metal is from, is elegantly hand engraved beside the plate.

With a three-minute central flying tourbillon, instantaneous jumping hours and retrograde minutes that snap into place in sharp, precise actions similar to gun mechanisms, and a lateral power reserve indication providing a discreet visual link to the ejection port of an AK47, Candaux delivered all that and more.

“Fonderie 47 has allowed us to create a unique timepiece, not simply for the purpose of creating a luxury watch, but for a noble purpose.” David Candaux (watchmaker)
Seen through a display back, the back of the movement features a stunning sunray guilloche pattern radiating out from the dark plate of transformed steel from a destroyed AK47 that covers the ratchet wheel. This plate turns when the watch is wound. An opening to the right of the plate offers access to adjust the power reserve mechanism, while a second small opening near the crown reveals part of the winding mechanism. The second power reserve indicator arcs across the top of the back plate.
Inversion Principle’s three-dimensional indications, rise from the 240° numbers on the flat retrograde minutes ring to the inner inclined minute markers. The blued minute hand has an inclined inner arrow following the angle of the minute marker track.
The three-handed seconds indicator on the tourbillon cage has a retrograde effect complimenting the minutes: The hands disappear after 60 on the right and appear to reappear at 0 on the left. On either side of the jumping hour window, past and future hours can just be discerned through the translucent crystal ring that circumscribes the dial.
Inversion Principle Tourbillon watch was priced at $195,000. Revenues from the sale of each timepiece will be used fund the destruction of one thousand assault weapons in Africa, creating a safer environment for aid and development. This is a strategy that entrepreneur Peter Thum has already implemented successfully, most notably in creating Ethos Water to fund clean water projects in Africa and around the world.