Audemars Piguet Royal Oak Quantieme Perpetual 18K
Model: Royal Oak Quantieme Perpetual 18K
Collection: Royal Oak
Reference: 25820TA.O.0944TA.01
Year: 1997
Scope of Delivery: Original Box with original Papers and digital Asset
Glass: Saphire Crystal
Case Material: Tantalum
Bezel Material: 18ct. Solid Gold
Case Back Material: Saphire Crystal
Features: Date, Month, Moonphase, Weekday, Perpetual Calendar
Indexes: Print and Applied
Dial Handstyle: Stick Hands
Caliber: AP 2120/2802
Base Caliber: AP 2121
Power Reserve: 40h
Number of Stones: 38
Frequency: 21.600A/h
Clasp Type: Fold Over Safety Clasp
Clasp Material: Audemars Piguet 18ct. Solid Gold and Solid Tantalum
About the Watch
In 1971 Audemars Piguet realized that, without a disruptive change, a financial collapse was inevitable. Elaborating some feedback that they received from the Italian market about possible interest for a steel luxury watch, the management of the manufacture decided it was time to introduce something totally new, a sporty yet elegant timepiece as never seen before. The designer of choice for this task was a designer born in Geneva in 1931 from an Italian father and a Swiss mother: Gerald Genta. Not a new designer, rather one of the most famous watch designer at that time, having created successful watches for Universal Genève (Polerouter Microtors, White Shadow, Golden Shadow), Omega (Constellation) and Patek Philippe (Golden Ellipse).
Only 15 pieces of this reference were made worldwide. Its 39 mm case, crafted from tantalum—a rare, dark grey metal with subtle blue hues—draws its name from Tantalus’s torment in Greek mythology. Known for its exceptional hardness and challenging workability (melting at 3016°C with a density of 16.65 g/cm³), tantalum is rarely used in watchmaking. Its exceptional resistance to corrosion and wear, along with its biocompatibility, make it a prized material in high-end horology.
About the Brand
The Manufacture was established in 1875 in Le Brassus, a village at the heart of La Vallée-de-Joux in the Swiss Jura, by Jules-Louis Audemars and Edward-Auguste Piguet, two enterprising young men who combined their talent to develop and produce watches featuring rare complications. Already in these early days, an Audemars-Piguet watch was prized by admirers of fine mechanical timepieces. Through determination, imagination and discipline, they inscribed their name on the wider history of watchmaking. The company they established has never left the hands of the founding families
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