Audemars Piguet Millenary: AP's Undervalued Artistic Masterpiece
The Audemars Piguet Millenary, launched in 1995 to mark the approaching third millennium, houses AP's manufacture movements in an elliptical case with an off-centered dial that transforms the watch into a viewing window for its mechanical architecture. The design traces to AP's own oval case experiments from 1951. The in-house Calibre 4101 (284 parts, 34 jewels, 60-hour power reserve, 22K gold rotor visible from both sides) elevated the collection from design curiosity to manufacture showcase when it debuted around 2006. The Ref. 15350ST in stainless steel, originally retailing at $24,500, established the Millenary's identity as a genuine alternative to the Royal Oak. Key men's references were discontinued by 2018 as AP concentrated resources on the Royal Oak ecosystem and CODE 11.59. The steel Millenary 4101 now trades at $15,000 to $22,000, representing what may be the strongest value proposition in AP's entire pre-owned market: a genuine in-house manufacture watch at a fraction of Royal Oak pricing.
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Specifications
History
The Millenary was created in 1995 as Audemars Piguet's millennium-themed collection, subtly reinterpreting an oval case design AP had explored as early as 1951. The design brief was radical: an elliptical case with an off-centered dial that would transform the watch from a time-telling instrument into a viewing window for mechanical artistry. It was initially an all-men's collection, with women's versions arriving around 2015.
Iconic References
Buying Guide
- • Collectors who already own a Royal Oak and want something different from AP
- • Design-forward buyers who appreciate asymmetry and visible mechanics
- • Value hunters seeking in-house AP movements under $20,000
- • Watch enthusiasts who want a conversation piece that isn't another round sports watch
- • Women seeking a genuinely horological ladies' watch (not a jewelry-first design)
Pricing & Market Data
Retail MSRP
Pre-Owned Market
Market Trajectory
Prices have corrected significantly from original retail. The steel 4101 is now at or below $15,000 in many cases, this may represent the floor, as supply of pre-owned pieces will eventually contract.
Investment Grade
B+: undervalued with asymmetric upside. The Millenary offers disproportionate quality for its current price, but liquidity is lower than mainstream AP models.
Best Value Pick
15350ST.OO.D002CR.01: in-house AP manufacture with visible movement for $15,000-$17,000
Comparisons
Cultural Significance
Collector's Lore
The Millenary was AP's bet on the year 2000: 'Millenary' literally references the millennium. What was meant as a temporal celebration became a timeless design.
Quincy Jones had a personal relationship with AP and received a limited-edition Millenary in his honor, one of the few celebrity-linked pieces in the collection's history.
The off-centered dial was inspired by early pocket watches where movement architecture determined dial placement: AP revived a centuries-old principle.
At current steel prices ($15,000), the Millenary 4101 costs less than many watches with ETA movements. Collectors call this 'the AP pricing glitch.'
The oval case actually traces back to a 1951 AP design, the Millenary reinterpreted a form the brand had explored 44 years earlier.
AP insiders reportedly considered the Millenary a creative playground: complications like star wheels, dead-beat seconds, and AP escapements were tested here before other collections.
The 47mm dimension scares some buyers, but veteran collectors know the oval shape makes it one of AP's most wearable large watches, the curve follows the wrist naturally.
Frequently Asked Questions
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