# Zenith Defy Revival A3642 Review by A.I. WatchMetrics


## Watch Summary
The Zenith Defy Revival A3642 is a luxury sports watch with a tonneau-shaped case and integrated stainless steel bracelet, faithfully reissuing the bold 1969 original for collectors who appreciate vintage-inspired designs with modern reliability; it pairs a clean sunray dial and dauphine hands with the automatic Elite 670 movement offering a 50-hour power reserve.

## Overall Watch Rating: 6.8/10.0

**Material Metric (9.1/10.0)** - Premium stainless steel construction with box sapphire crystal and meticulous brushed/polished finishing rivals top luxury sports watches like the Omega Seamaster.
**Dials & Design Metric (9.0/10.0)** - The iconic 1969 tonneau revival design with sunray dial and applied indices delivers standout aesthetics comparable to historic re-editions from Audemars Piguet.
**Brand Metric (8.5/10.0)** - Zenith's prestigious heritage and craftsmanship secure a strong luxury standing, akin to Omega or Grand Seiko.
**History & Innovation Metric (8.7/10.0)** - Deep roots in pioneering high-beat movements and this faithful Defy reissue earn high marks, similar to Rolex's heritage models.
**Movement Metric (8.6/10.0)** - The decorated Elite 670 automatic provides reliable performance and finishing on par with mid-tier Swiss luxury calibers like ETA 2824 upgrades.
**Versatility Metric (7.9/10.0)** - Suitable for casual to semi-formal wear with its compact 37mm size, though integrated bracelet limits options like a true all-rounder such as the Tudor Black Bay.
**Rarity Metric (7.3/10.0)** - At its price point, it offers moderate exclusivity through design heritage, benchmarked against standard production luxury models.
**Functions Metric (1.9/10.0)** - Basic time-only display falls short of average, lacking date or extras found in entry-luxury like the Tissot PRX Powermatic.
**Complications Metric (0.0/10.0)** - Absence of any complications places it below even basic median watches with chronographs or dates.

## Total Performance Score (TPS): 4.0
## TPS Interpretation: Fair Value: The watch excels in design and materials but underperforms in functions and complications for its luxury price point.
## WM Collector Grade: C
## Performance Insights: Strengths in brand prestige, materials, and design are offset by minimal functions and no complications, delivering middling value versus an implied price around $3,500.

## Watch Data
[Picture URL] - https://www.zenith-watches.com/dw/image/v2/BGSS_PRD/on/demandware.static/-/Sites-masterZenith/default/dw4e1d5a1d/hi-res/A3642_170_01_C011M-Defy-Revival.jpg; [backPicture] - N/A; [lumePicture] - N/A; [Nickname] - Defy Revival A3642; [Brand] - Zenith; [Model] - Defy Revival A3642; [Country] - Switzerland; [Product Link] - https://www.zenith-watches.com/en_us/defy-revival-a3642-170-01-c011m; [reviewLink] - N/A; [Movement Type] - Automatic; [Movement Name] - Elite 670; [# MSRP] - 8950; [# Secondary] - 7200; [# Production] - Unlimited; [watchDescription] - Tonneau-shaped stainless steel luxury sports watch reviving the 1969 Defy A3642 with integrated bracelet, sunray dial, and automatic Elite 670 movement; [caseWidth] - 37; [lugToLugLength] - 44.5; [thickness] - 12.55; [lug] - 20; [waterResist] - 50; [powerReserve] - 50; [beatFrequency] - 28800; [lume] - Super-LumiNova; [jewels] - 27; [caseMaterial] - Stainless steel; [watchGlass] - Box sapphire AR; [Bezel] - Fixed stainless steel; [caseback] - Sapphire display; [Crown] - Screw-down; [Strap] - Stainless steel bracelet; [Shape] - Tonneau; [Dial] - Sunray black; [caseShape] - Tonneau; [Seconds] - 1; [Date] - 0; [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] - C; [TPSimpliedPrice] - 3500;

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