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Ulysse Nardin Perpetual Calendars








The actual Ulysse Nardin Perpetual Calendar series is based on the primary technology of Dr . Ludwig Oechslin's single-crown bidirectional realignment, balancing practicality and complicated craftsmanship. Core models consist of GMT + Perpetual Calendar, El Toro, and Ludwig models. The following sections talk about its technology, classic versions, collectible value, and purchasing guidance.



Core Technologies and Historical Milestones



1996 Technological Trend: Introduced the first perpetual work schedule with bidirectional adjustment of most calendar functions (year/month/day/weekday/leap year) via a single crown, overturning the traditional perpetual calendar's discomfort point of " going back to the factory if adjusted improperly, " becoming the industry standard for practicality.



Movement System: Centered on the actual UN-32 (GMT + Perpetual Calendar) and UN-33 (Ludwig basic model), both are automatic winding, equipped with a si escapement, 34 jewels, along with a power reserve of 42-48 hrs. Some models are COSC certified.



Patented adjustment mechanism: The overhead can be used to adjust the day forward or backward; the particular GMT model uses typically the " +/-" buttons to modify the local time without changing the main date, balancing sophisticated functions with everyday procedure.



Classic Versions and Core Parameter Evaluation



Model | Case Diameter | Material | Movement | Primary Functions | Limited Edition/Features



GMT+Perpetual 322-66 | 42mm | 18 CARAT Rose Gold | UN -- 32 Perpetual Calendar & GMT + Large Day



El Toro 322-00 | 43mm | 18K Rose Gold / Fine ceramic Bezel | UN : 32 Perpetual Calendar and up. GMT + Ceramic Elements | Limited Edition, Black/Blue Dial, Folding Ceramic Form



Ludwig 150th Anniversary 336-22 | 38mm | 18K Yellow Gold | UN - 33 Fundamental Perpetual Calendar + Big Date | Limited Edition of 150 Pieces, Silver precious metal Dial with Guilloché Style



Perpetual Calendar Manufacture | 42mm | 18K White Gold | UN - 32 Perpetual Work schedule + GMT | Shop Exclusive, Blue Dial



Collectible Value | Scarcity Dimensions | Restricted Editions (e. g., Ludwig 150th Anniversary, El Toro) The El Toro product has greater potential, along with models produced in quantities associated with ≤500 pieces maintaining a comfortable premium in the secondary marketplace.



Material Shortage: Ceramic bezels (El Toro) and 18K white gold types hold their value much better than regular rose gold.



GMT+Perpetual models offer the greatest liquidity due to their practicality; often the El Toro's ceramic style is favored by younger enthusiasts.



Long-Term Value: Technological Innovation: The historical importance of the 1996 bidirectional adjusting patent establishes its standard status in haute horlogerie's pragmatism.



Material Innovation: Early application of si escapement, balancing accuracy and sturdiness, with lower maintenance expenses than traditional escapements.