Ad
Ad
Ad
Ad
Ad
Ad
Reading time 3 min.

Off the Chain: The Zenith Defy Fusée Tourbillon

DSC_2232
© PR

The fusée and chain mechanism has held its place in horological history since the 15th century as the equalizer which evened out the pull of the mainspring. Its purpose? To improve the precision of timekeeping throughout the entirety of a watch's power reserve. Zenith has long been a well-regarded name when it comes to implementing the constant force of the fusée and chain system in its timepieces. We are, of course, talking about the Zenith Academy Georges Favre-Jacot watch. Named after the founder of the Le Locle-based brand, the timepiece was recreated in 2016 to commemorate 150 years since Zenith's inception.

Fast forward to 2019 and the new Defy Fusée Tourbillon has been introduced as an avant-garde attempt by the brand to modernize the movement architecture of the “constant force” mechanism by combining it with a tourbillon. Available in two distinct case materials in carbon and platinum — both sized at 44 mm — the latest addition to the Defy collection features the manual-winding El Primero 4805 SK caliber.
DSC_2239
© PR
The caliber features an integrated fusée and chain mechanism visible in the upper portion of the dial. The chain consists of 575 individually hand-assembled components in a very bold blue hue. At the 6 o'clock position, a new tourbillon cage design for Zenith can be found with an off-centered balance wheel that makes a full rotation every 60 seconds. The tourbillon cage matches the vibrant color of the fusée and chain. To the right of the tourbillon cage is a red-tipped power reserve indicator that showcases the 50 hours of running autonomy.
DSC_2226
© PR
The first version of the Defy Fusée Tourbillon comes in a lightweight carbon case, crown, and buckle head. The open dial features a carbon fiber treatment including the central skeletal element. Limited to 50 pieces, the carbon watch sits comfortably on a black rubber strap with a “Cordura” fabric effect and blue stitching. Price: $80,900
DSC_2235
© PR
The second platinum version, limited to 10 pieces, offers a vibrant view of the open dial in anthracite and blue. The strap is made of a black rubber core coated with black alligator leather. Price upon request. All images by Petro Onysko A version of this article first appeared on WatchTime India
Archiv

Latest Articles

Rado Expands Captain Cook Collection with Blue High-Tech Ceramic Chronograph - Metallic sheen, no metal
Rado introduces a striking new blue edition of its Captain Cook High-Tech Ceramic Chronograph. Combining a deep-blue dial and ceramic bezel with a plasma high-tech ceramic case, the latest model blends dive-watch capability with contemporary materials and refined aesthetics.
3 minutes
Jun 23, 2026
Urwerk Introduces the UR-120 Blue Planet - The final chapter
Urwerk concludes its UR-120 trilogy with the Blue Planet edition, a 20-piece limited series combining a deep-blue case, sophisticated satellite-hour display and a mechanically animated "salute" complication.
3 minutes
Jun 23, 2026
Citizen Promaster Wave Tracker: A New Eco-Drive Sailing Watch for Regattas and Life at Sea - The ocean calls
Citizen expands its Promaster Marine collection with the new Wave Tracker, an analog-digital sailing watch equipped with a regatta timer, tide graph, moon phase display, and sunrise and sunset times for 203 locations worldwide.
4 minutes
Jun 23, 2026

You might also be interested in

Zenith Celebrates the U.S.’s 250th Anniversary with Two Chronomaster Revival Liberty II Editions - 250 editions for 250 years
Limited to 250 pieces in steel and 25 in forged carbon, the new Chronomaster Revival Liberty II models revisit the iconic A384 while honoring Zenith’s historic ties to the United States.
3 minutes
May 28, 2026
To the Summit without Oxygen: A Spotlight on the Montblanc 1858 Geosphere 0 Oxygen
Montblanc is emphasizing the meaning of its brand name to a greater degree and creating innovative watches connected to alpinism. The company recently collaborated with extreme mountaineer Reinhold Messner to create a watch with no oxygen inside its case.
9 minutes
May 25, 2026
World Tour: Close-Up with the Citizen Series 8 GMT
The starting point is Japan, and the target is the whole world. Citizen’s new Series 8 GMT makes it easy to switch from one time zone to another.
4 minutes
Ad
Ad
Ad
Ad
Ad