# Zenith Defy Revival A3691 Review by A.I. WatchMetrics


## Watch Summary
The Zenith Defy Revival A3691 is a luxury sports watch in a distinctive tonneau case design inspired by the original 1972 Defy, featuring an integrated stainless steel bracelet, minimalist black opaline dial with small seconds subdial and date window, aimed at collectors and enthusiasts who appreciate vintage-revival aesthetics paired with modern high-performance horology via its 36,000 vph automatic movement offering 60 hours of power reserve.

## Overall Watch Rating: 7.8/10.0

**History & Innovation Metric (9.4/10.0)** - Zenith's pioneering El Primero high-frequency movement and this model's faithful revival of a 1970s icon deliver exceptional historical significance and technical advancement, surpassing many luxury peers like Omega's heritage reissues.
**Dials & Design Metric (9.3/10.0)** - The tonneau shape, integrated bracelet, and clean opaline dial with applied indices evoke a compelling 70s vibe executed with modern precision, on par with the best from Gerald Genta-inspired designs.
**Movement Metric (9.2/10.0)** - The in-house Caliber 3620 beats at an exhilarating 36,000 vph with 60-hour reserve and solid finishing, outperforming standard automatics in mid-tier luxury like those from Tudor.
**Material Metric (9.1/10.0)** - Premium stainless steel construction with brushed/polished finishes, domed sapphire crystal with AR coating, and robust build quality match the standards of high-end integrated sports watches like Audemars Piguet Royal Oak alternatives.
**Brand Metric (8.6/10.0)** - Zenith holds strong luxury prestige with its chronograph legacy and Swiss craftsmanship, comparable to Omega but with unique high-beat niche appeal.
**Versatility Metric (8.5/10.0)** - This tonneau integrated piece transitions seamlessly from casual office wear to evening events, offering more flexibility than pure divers but less than field watches like the Hamilton Khaki.
**Rarity Metric (7.4/10.0)** - At its price point and unlimited production status, it strikes a balance of accessibility and desirability, similar to current-production Tudors on the secondary market.
**Functions Metric (5.0/10.0)** - Basic hours, minutes, small seconds, and date suffice for daily use but fall short of the multifunctionality expected in comparably priced pieces like the Omega Seamaster.
**Complications Metric (3.5/10.0)** - The simple date window provides minimal added utility, lagging behind chronographs or GMTs common in this luxury segment like those from Breitling.

## Total Performance Score (TPS): 4.0
## TPS Interpretation: Fair Value: The watch provides reliable functionality with a unique aesthetic at its price.
## WM Collector Grade: B-
## Performance Insights: Excels in movement, design, and heritage but is held back by basic functions and complications; punches above its implied price of around $5,500 with standout high-beat performance.

## Watch Data
[Picture URL] - https://www.zenith-watches.com/dw/image/v2/BFWH_PRD/on/demandware.static/-/Sites-zenith-master-catalog/en/-/media/Zenith/Product/DEFY/REVIVAL/A3691/A3691_900_R969/A3691_900_R969_main.jpg?sfvrsn=4b8a4d2e_2; [backPicture] - ; [lumePicture] - ; [Nickname] - Defy Revival A3691; [Brand] - Zenith; [Model] - Defy Revival A3691; [Country] - Switzerland; [Product Link] - https://www.zenith-watches.com/en_us/defy/revival-a3691-900-r969; [reviewLink] - ; [Movement Type] - Automatic; [Movement Name] - 3620; [# MSRP] - 8950; [# Secondary] - 7800; [# Production] - Unlimited; [watchDescription] - Tonneau-shaped luxury sports watch reviving the 1972 Zenith Defy, featuring high-beat automatic movement, integrated bracelet, black opaline dial, small seconds, and date.; [caseWidth] - 37; [lugToLugLength] - 44.5; [thickness] - 11.1; [lug] - 37; [waterResist] - 50; [powerReserve] - 60; [beatFrequency] - 36000; [lume] - Super-LumiNova; [jewels] - 27; [caseMaterial] - Stainless Steel; [watchGlass] - Sapphire; [Bezel] - Fixed stainless steel; [caseback] - Solid; [Crown] - Screw-down; [Strap] - Stainless steel bracelet; [Shape] - Tonneau; [Dial] - Black opaline; [caseShape] - Tonneau; [Seconds] - 1; [Date] - 1; [Calendar] - 0; [Chiming] - 0; [Chronograph] - 0; [Compass] - 0; [dateCompilation] - 0; [DigitalDisplay] - 0; [Dress] - 0; [Field] - 0; [GMT] - 0; [Mechanical Alarm] - 0; [Moonphase] - 0; [Tourbillon] - 0; [worldTimer] - 0; [powerReserveIndicator] - 0; [Diver] - 0; [Pilot] - 0; [racing] - 0; [Skeleton] - 0; [Vintage] - 0; [StyleFormal] - 0; [StyleCasual] - 1; [StyleSports] - 1; [StyleTravel] - 0; [StyleAdventure] - 0; [StyleCollector] - 1; [StyleTool] - 0; [StyleStatement] - 1; [StyleVintage] - 1; [StyleSmart] - 0; [StyleCustom] - 0; [TPS_new] - 4.0; [TPSgrade] - B-; [TPSimpliedPrice] - 5500;

**A.I. WatchMetrics Review v37.10 Grok 4 Fast. December 21, 2025.**