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Audemars Piguet Millenary
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Launch year1995
Case shapeOval/barrel-shaped
DialOff-center, movement on display
MovementVaries by execution (manual/automatic)
PositioningDress/artistic collection, alongside the Royal Oak

Millenary

The brand's "non-octagonal" collection, known for its oval case and off-center dial that reveals the movement

Model History

Introduced in 1995, the Millenary was born as a collection parallel to the Royal Oak: an openly stated attempt to offer an aesthetic language alternative to the octagonal bezel that, even by then, had established itself as the brand's dominant image. The chosen shape, an oval/barrel-shaped case far removed from any classic watchmaking geometry, set out from the start to distinguish itself both from the Royal Oak and from the traditional round dress watches of the competition.

The collection's most recognizable feature is its off-center dial, shifted toward the edge of the case to leave the gears and regulating organs of the movement visible in the remaining space: a layout that, in its more elaborate executions, goes so far as to literally flip the calibre to expose components — such as the balance wheel and pallet fork — normally hidden on the back. The result is a watch that openly presents itself as a "showcase" for the manufacture, in a deliberate play of perspective and asymmetry.

While never reaching the mass popularity of the Royal Oak, the Millenary has carved out a loyal niche over the years among collectors who appreciate more conceptual watchmaking, less tied to sporty codes, also distinguishing itself with certain jewelry and artistic variants aimed at a female audience, a segment in which the brand has invested consistently.

Technical Specifications

Case shape
Oval/barrel-shaped, non-octagonal
Dial
Off-center, shifted toward the case edge
Movement
Varies by execution: manual, automatic, with complications
Movement finish
Gears and regulating organ often on display
Materials
Steel, gold, versions with diamond pavé
Diameter
Varies by execution
Water resistance
Not uniformly specified by the manufacturer across the entire line
Launch year
1995

Main Executions

Millenary (1995)First execution of the collection, oval casesince 1995
Millenary 4101 (ref. 15350ST)Execution with inverted, visible movement, balance wheel and pallet fork visible on the dial2010s
Millenary, jewelry and complicated versionsVariants with diamonds, tourbillon and other complications over time1995 to today
Fun Fact

In the Millenary 4101 version, the movement was literally flipped relative to its usual configuration, bringing into view on the dial components — such as the balance wheel and the escapement's pallet fork — that in traditional watches remain hidden beneath the case back: a choice that overturns the very idea of the "dial" as a simple surface for reading the time.