Zenith’s DEFY Zero G Sapphire, launched in October 2025, puts the brand’s Gravity Control regulating module in a 46 mm sapphire case. It came in transparent and blue versions, each reported as limited to 10 pieces. The watch’s gravity-defying claim is about the design of its regulating organ—not a published, independently verified accuracy result.
What Zenith launched
The DEFY Zero G Sapphire was presented in two versions: one with a transparent sapphire case and one in blue sapphire. T3 and Fratello reported a 46 mm case diameter and a production limit of 10 pieces for each version. Fratello identified the references as 04.9000.8812/51.R584 for transparent sapphire and 04.9003.8812/51.R584 for blue sapphire.
The editions’ established difference is their case appearance. The launch coverage does not report a mechanical distinction between them.
How Gravity Control works—and what the claim means
Zenith says the El Primero 8812S powers the DEFY Zero G collection. The brand describes its patented Gravity Control module as inspired by marine chronometer gimbals and made from 139 miniature components. In Zenith’s account, a gyroscopic regulating organ moves to counter gravity’s effect on timekeeping in real time. This is the brand’s explanation of the mechanism, not a measured accuracy claim.
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How it differs from a tourbillon
The Zero G’s distinguishing feature is its gimbal-mounted regulating organ, which Zenith calls Gravity Control. That makes the concept different from simply describing the watch as a tourbillon: the available launch material specifically identifies a gyroscopic regulating module inspired by marine chronometer gimbals. Neither the brand’s explanation nor the cited launch coverage supplies comparative test results showing a timekeeping advantage over a tourbillon or other escapement designs.
Launch specifications
| Specification | Launch-era published detail |
|---|---|
| Movement | Hand-wound El Primero 8812, as reported by Fratello; Zenith identifies the collection’s movement as El Primero 8812S |
| Case diameter | 46 mm, reported by T3 and Fratello in October 2025 |
| Case versions | Transparent sapphire and blue sapphire |
| Production | 10 pieces per version, reported by T3 and Fratello in October 2025 |
| Power reserve | 50 hours, reported by Fratello |
| Water resistance | 3 ATM, reported by Fratello |
| Dial and strap | Open-worked dial with lapis lazuli sub-dials; integrated rubber strap with blue alligator leather inlay and titanium folding clasp, reported by Fratello |
Reported launch prices and availability
Fratello reported a launch price of €220,000 or US$207,500 per version in October 2025; T3 also reported CHF 200,000. These are launch-era published prices, not current quotes. The reported 10-piece limit per version describes the launch production run, but does not establish whether any examples remain available now. Check with Zenith or an authorized retailer for current pricing and stock.
Quick Recap
Rank #3
- Zenith Defy Classic Automatic Skeletal Dial Titanium Men's Watch 95.9000.670/78.M9000
Sources
- T3, Sam Cross, 15 October 2025
- Zenith, “The Sound of Precision,” official movement information, accessed 8 October 2026
- Fratello, Lex Stolk, 24 October 2025
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
