About the Audemars Piguet Code 11.59 Perpetual Calendar
Introduced as part of the broader Code 11.59 by Audemars Piguet family, this perpetual calendar line builds on the collection's defining double-curved sapphire crystal, octagonal middle case, and round bezel silhouette that set it apart from the Royal Oak lineage. The perpetual calendar complication is among the most demanding in traditional Swiss watchmaking, requiring the movement to track the varying lengths of every month across a four-year leap-year cycle automatically. Audemars Piguet offers these watches in 18-karat pink rose gold, reference 26441OR, and 18-karat white gold, reference 26443NB, with the openworked variant revealing skeletonized bridges and plates that showcase in-house manufacture craftsmanship. Together these references position the Code 11.59 Perpetual Calendar as a serious grand complication for collectors seeking an alternative to the brand's iconic octagonal sport watches.
What to Look For
When shopping for a Code 11.59 Perpetual Calendar, buyers should pay close attention to the case material and dial configuration, as the pink rose gold 26441OR.OO.D405CR.01 features a classically presented dial while the white gold 26443NB.OO.D002CR.01 offers a fully openworked display that commands a premium for its additional artistic and technical complexity. Condition of the case finishing is especially important in precious metal references, since scratches on polished and brushed surfaces are more visible and costly to refinish, and original box and papers significantly influence resale value and buyer confidence.
Frequently Asked Questions
What is the difference between the Code 11.59 Perpetual Calendar pink gold and white gold references?
The pink rose gold reference 26441OR.OO.D405CR.01 features a traditionally finished dial, while the white gold reference 26443NB.OO.D002CR.01 is fully openworked, exposing the movement architecture through skeletonized bridges and plates. Both share the same fundamental Code 11.59 case design and perpetual calendar complication, but the openworked white gold piece is generally rarer and commands a higher market value.
Do I need to adjust an Audemars Piguet Code 11.59 Perpetual Calendar for leap years?
No, the perpetual calendar mechanism is designed to track the unequal lengths of all twelve months across a four-year leap-year cycle automatically, requiring no manual date correction under normal operation until the year 2100. This makes it a practical as well as prestigious daily wear complication for discerning collectors.
Are the Code 11.59 Perpetual Calendar watches at Bizak and Co. authentic and do they come with documentation?
Every Code 11.59 Perpetual Calendar for sale at Bizak and Co. is fully authenticated before listing and inspected to confirm genuine Audemars Piguet origin and movement integrity. We encourage buyers to inquire about available box and papers for each specific reference, as documentation status is noted on individual listings and directly affects collectibility and long-term value.
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Buy, trade, or sell. Contact Bizak & Co. for pricing and availability on any reference in this collection.
