# Patek Philippe Annual Calendar Moon in White Gold Review by A.I. WatchMetrics

## Watch Summary
This sophisticated dress complication watch embodies Patek Philippe's mastery with a 40mm 18k white gold case, textured blue dial featuring applied Breguet numerals, dauphine hands, and the patented Annual Calendar at 12 o'clock flanked by day and month apertures, complemented by a moonphase and small seconds at 6 o'clock; targeted at affluent collectors and executives valuing heritage and subtlety, powered by the in-house automatic Caliber 26-330 S C FUS 24H with 45 hours of power reserve.

## Overall Watch Rating: 9.5/10.0

**Brand Metric (9.9/10.0)** - Patek Philippe stands at the pinnacle of haute horlogerie, matching F.P. Journe in prestige and exclusivity.
**Rarity Metric (9.9/10.0)** - Its $60,000+ price and limited annual production deliver elite scarcity on par with other grand complications from top maisons.
**Movement Metric (9.9/10.0)** - The in-house automatic caliber offers supreme complexity, finishing, and reliability rivaling A. Lange & Söhne's finest.
**Dials & Design Metric (9.8/10.0)** - The opulent textured dial and harmonious layout evoke timeless elegance comparable to Patek's own Calatrava icons.
**Material Metric (9.8/10.0)** - Precious white gold, sapphire with dual AR coating, and masterful polishing benchmark against Vacheron Constantin's Overseas.
**History & Innovation Metric (9.7/10.0)** - Patek's pioneering Annual Calendar patent elevates its legendary heritage beyond most luxury peers.
**Complications Metric (9.5/10.0)** - The self-adjusting annual calendar paired with moonphase provides sophisticated utility akin to Jaeger-LeCoultre's Master Control.
**Versatility Metric (8.5/10.0)** - Ideal for formal and collector settings, though modest 30m water resistance curbs daily rugged use versus Rolex Datejust.
**Functions Metric (8.2/10.0)** - Delivers precise time, annual calendar indications, and moonphase effectively, though fewer than multifunction rivals like Blancpain Villeret.

## Total Performance Score (TPS): 4.2

## WM Collector Grade: B+

## Performance Insights: Strengths dominate in brand, rarity, movement, materials, and design for peerless luxury appeal, while functions and versatility are solid but expected for the segment; superior to implied price for dedicated collectors.

## TPS Interpretation: Solid Value: The watch exceeds price-adjusted expectations in heritage, complications, and finishing, justifying its status for enthusiasts.

## Watch Data
[Picture URL] - https://www.patek.com/sites/default/files/styles/hero_gallery/public/2023-12/5205G-001_1.jpg?h=8d5e1f7a&itok=3qXjZf5R; [backPicture] - https://www.patek.com/sites/default/files/styles/hero_gallery/public/2023-12/5205G-001_2.jpg?h=8d5e1f7a&itok=3qXjZf5R; [lumePicture] - none; [Nickname] - Annual Calendar Moonphase; [Brand] - Patek Philippe; [Model] - Annual Calendar Ref. 5205G-001; [Country] - Switzerland; [Product Link] - https://www.patek.com/en/collection/annual-calendar/5205G-001; [reviewLink] - ; [Movement Type] - Automatic; [Movement Name] - 26-330 S C FUS 24H; [# Secondary] - 0; [watchDescription] - Elegant 40mm white gold Annual Calendar with patented self-adjusting date, day, month, and poetic moonphase on textured blue dial, secured by alligator strap.; [caseWidth] - 40; [lugToLugLength] - 47.8; [thickness] - 11.6; [lug] - 21; [waterResist] - 30; [powerReserve] - 45; [beatFrequency] - 28800; [lume] - none; [jewels] - 37; [caseMaterial] - 18k white gold; [watchGlass] - sapphire antireflective; [Bezel] - fixed; [caseback] - sapphire exhibition; [Crown] - white gold; [Strap] - black alligator leather; [Shape] - round; [Dial] - textured blue; [Seconds] - yes; [Date] - yes; [Calendar] - annual; [Chiming] - no; [Chronograph] - no; [Compass] - no; [dateCompilation] - no; [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] - 4.2; [TPSgrade] - B+; [TPSimpliedPrice] - 35000;

**A.I. WatchMetrics Review v37.4 Grok 4 Fast. December 19, 2025.**