Patek Philippe Grand Complications Perpetual Calendar Ref. 5320G-001
Grand Complications / Perpetual Calendar · Patek Philippe (Independent family-owned); Haute Horlogerie Tier; highest reputation for perpetual calendars
Period: Neo-Vintage / Retro-Modern (Indicated by triple-stepped lugs and syringe hands inspired by 1940s and 50s models like the ref. 1518 and 1591)
Type
Grand Complications / Perpetual Calendar
Brand
Patek Philippe (Independent family-owned); Haute Horlogerie Tier; highest reputation for perpetual calendars
Movement
Automatic Caliber 324 S Q, 28,800 vph (4Hz), 35-45 hour power reserve, 29 jewels, Gyromax balance, Spiromax hairspring, Patek Philippe Seal
Dimensions
Case diameter: 40.0mm, Thickness: 11.1mm, Lug-to-lug: 47.9mm, Lug width: 20mm
Description
The 5320G is a masterclass in 'nostalgic' design, blending Patek's mid-century aesthetic with modern mechanical precision. It features a stunning cream-lacquered dial and a unique triple-stepped lug design that creates a beautiful architectural presence on the wrist. Unlike more clinical modern calendars, its use of syringe hands and warm tones provides an emotional connection to the golden age of watchmaking.
Key Features
Triple-stepped lugs, cream lacquer dial, syringe hands, box-style sapphire crystal, and the 'in-line' day/month display format derived from historical 1940s references
Dial Description
Creamy lacquer (pale yellow/ivory) with applied 18k gold Arabic numerals with LumiNova. Polished blackened gold syringe hands with LumiNova. Complications: Day/Month apertures at 12, Date subdial with Moon phase at 6, Day/Night indicator between 7 and 8, Leap Year cycle between 4 and 5
Case Material
18k White Gold, high-polished finish with a distinct three-tier lug architecture
Crystal Type
Box-style sapphire crystal (mimicking vintage acrylic) with anti-reflective coating; excellent condition
Bezel Details
Fixed, polished 18k white gold chamfered bezel
Crown & Pushers
Push-pull crown with Calatrava cross; recessed correctors on case sides for calendar and moon phase adjustments
Bracelet or Strap
Hand-stitched chocolate brown shiny alligator leather strap with 18k white gold fold-over Calatrava Cross deployment clasp
Caseback Details
Interchangeable solid 18k white gold and sapphire crystal exhibition casebacks provided; displays 21k gold central rotor and Geneva striping
Movement Type
Automatic Caliber 324 S Q, 28,800 vph (4Hz), 35-45 hour power reserve, 29 jewels, Gyromax balance, Spiromax hairspring, Patek Philippe Seal
Water Resistance
30 Meters (3 ATM); splash-proof only; not suitable for swimming or immersion
Origin & Provenance
Swiss Made, manufactured in Plan-les-Ouates, Geneva. In-house movement with Patek Philippe Seal
Age Estimate
Circa 2017 to present (Reference debuted at Baselworld 2017)
Cultural Significance
Represents Patek Philippe's shift toward 'Retro-Modern' design, successfully targeting younger collectors who appreciate vintage aesthetics with modern reliability and size
Condition Notes
Mint/Excellent condition; no visible scratches on the white gold case or crystal; leather shows minimal wear; dial and hands are pristine
Value Estimate
Retail: Approx. $95,000 USD; Secondary Market: $75,000 - $85,000 USD depending on full set availability
Care & Maintenance
Service interval 3-5 years; avoid strong magnetic fields; use only the provided stylus for correctors; keep leather away from water; store in a watch winder to maintain calendar sync
Similar Watches
Patek Philippe 5270 (Chronograph Perpetual), Vacheron Constantin Traditionnelle Perpetual Calendar, A. Lange & Söhne Langematik Perpetual
Interesting Facts
The lug design is inspired by the Ref. 2405 from the 1950s. While most perpetual calendars look crowded, the 5320 layout is noted for its exceptional legibility and balance