# IWC Da Vinci Perpetual Calendar 18k Review by A.I. WatchMetrics

## Watch Summary
The IWC Da Vinci Perpetual Calendar 18k is a luxurious dress watch featuring a tonneau-shaped case in 18k yellow gold, renowned for its innovative perpetual calendar module designed by Kurt Klaus, targeting sophisticated collectors who appreciate timeless elegance and mechanical complexity; it boasts a unique moonphase display, day, date, month, and year indicators, powered by the automatic Caliber 79261 movement with a 44-hour power reserve.

## Overall Watch Rating: 8.4/10.0

**Brand Metric (8.5/10.0)** - IWC earns a strong luxury score for its prestigious Swiss heritage and engineering prowess, comparable to Omega in brand prestige.
**History & Innovation Metric (9.2/10.0)** - This watch highlights IWC's groundbreaking perpetual calendar innovation by Kurt Klaus, setting it apart like Patek Philippe's historical complications.
**Rarity Metric (8.8/10.0)** - With limited production and a high price point, it's reasonably exclusive, similar to other high-end IWC models like the Portugieser.
**Material Metric (9.0/10.0)** - The 18k yellow gold case with sapphire crystal and refined finishing offers premium quality, on par with Audemars Piguet Royal Oak materials.
**Movement Metric (8.5/10.0)** - The modified Valjoux-based automatic caliber with perpetual module provides reliable performance and good finishing, akin to Breitling's chronograph movements.
**Complications Metric (9.5/10.0)** - Featuring a full perpetual calendar and moonphase, it excels in complexity, rivaling Vacheron Constantin's advanced features.
**Functions Metric (8.0/10.0)** - It includes essential calendar functions without overwhelming extras, performing like a Jaeger-LeCoultre Reverso in functionality.
**Dials & Design Metric (8.2/10.0)** - The elegant tonneau design and balanced dial layout offer distinctive aesthetics, comparable to Cartier's creative shapes.
**Versatility Metric (6.5/10.0)** - Best suited for formal occasions, its gold construction limits everyday wear, similar to other dress-focused pieces like those from Patek Philippe.

## Total Performance Score (TPS): 7.2

## WM Collector Grade: B+

## Performance Insights: Strong in complications, history, and materials but weaker in versatility, offering good value against an implied price of around $28,000.

## TPS Interpretation: Good Value: The watch delivers exceptional mechanical sophistication and luxury materials that justify its premium pricing for enthusiasts.

## Watch Data
[Picture URL] - https://www.iwc.com/content/dam/iwc/collection/davinci/iw392101_front.jpg; [backPicture] - https://www.iwc.com/content/dam/iwc/collection/davinci/iw392101_back.jpg; [lumePicture] - none; [Nickname] - Kurt Klaus Perpetual; [Brand] - IWC; [Model] - Da Vinci Perpetual Calendar; [Country] - Switzerland; [Product Link] - https://www.iwc.com/us/en/watch-collections/da-vinci/iw392101-da-vinci-perpetual-calendar-chronograph.html; [reviewLink] - https://www.hodinkee.com/articles/iwc-da-vinci-perpetual-calendar-review; [Movement Type] - Automatic; [Movement Name] - Caliber 79261; [# Secondary] - 0; [watchDescription] - Luxurious 18k yellow gold perpetual calendar watch with moonphase; [caseWidth] - 39; [lugToLugLength] - 49; [thickness] - 13; [lug] - 20; [waterResist] - 30; [powerReserve] - 44; [beatFrequency] - 28800; [lume] - yes; [jewels] - 31; [caseMaterial] - 18k yellow gold; [watchGlass] - sapphire; [Bezel] - fixed; [caseback] - solid; [Crown] - push-pull; [Strap] - leather; [Shape] - tonneau; [Dial] - silver; [Seconds] - yes; [Date] - yes; [Calendar] - perpetual; [Chiming] - no; [Chronograph] - no; [Compass] - no; [dateCompilation] - yes; [DigitalDisplay] - no; [Dress] - yes; [Field] - no; [GMT] - no; [Mechanical Alarm] - no; [Moonphase] - yes; [Tourbillon] - no; [worldTimer] - no; [powerReserveIndicator] - no; [Diver] - no; [Pilot] - no; [racing] - no; [Skeleton] - no; [Vintage] - no; [StyleFormal] - yes; [StyleCasual] - no; [StyleSports] - no; [StyleTravel] - no; [StyleAdventure] - no; [StyleCollector] - yes; [StyleTool] - no; [StyleStatement] - yes; [StyleVintage] - no; [StyleSmart] - no; [StyleCustom] - no; [TPS_new] - 7.2; [TPSgrade] - B+; [TPSimpliedPrice] - 28000;

**A.I. WatchMetrics Review v37.4 Grok 4. December 16, 2025.**