The Audemars Piguet 25657, specifically the reference 25657BA, represents a pinnacle of horological achievement: a meticulously crafted, self-winding perpetual calendar wristwatch. This article delves deep into the intricacies of this remarkable timepiece, exploring its technical brilliance, historical significance within the Audemars Piguet lineage, its desirability in the collector's market, and the specifics of the advertised "Automatique 25657 BA Full Set and Service" offering, including the implications of the "Price on request" stipulation and the added shipping cost.
A Masterpiece of Perpetual Calendar Engineering:
The Audemars Piguet Quantieme Perpetual Calendar 25657 (and its variations) stands as a testament to the brand's unwavering commitment to precision and innovation. The perpetual calendar complication, a feat of mechanical engineering, automatically adjusts for the varying lengths of months, including February's leap year adjustments, without requiring manual intervention for centuries to come. This complex mechanism, housed within the elegant case of the 25657, seamlessly integrates with the timekeeping functions, displaying the day, date, month, and moon phase with impeccable accuracy.
The movement itself, a testament to Audemars Piguet's in-house manufacturing capabilities, is a marvel of miniature engineering. Hundreds of meticulously crafted components work in perfect harmony, a testament to the brand's long-standing tradition of watchmaking excellence. The intricate design not only ensures accurate timekeeping but also provides a captivating view through the exhibition caseback, allowing the wearer to appreciate the beauty of the meticulously finished movement. The level of finishing, including Côtes de Genève, perlage, and anglage, showcases the dedication to detail that defines high-end horology. The choice of materials, often including precious metals like gold or platinum, further emphasizes the exclusivity and craftsmanship of this timepiece.
The 25657BA: A Specific Reference within a Legacy:
While the reference number 25657 encompasses a range of variations within the Audemars Piguet Quantieme Perpetual Calendar collection, the "BA" suffix designates a specific configuration. This might indicate differences in case material (e.g., yellow gold, white gold, or platinum), dial color (e.g., silver, black, or champagne), or strap material (e.g., leather, alligator skin, or metal bracelet). The precise details of this specific reference would need to be verified through the seller or a reputable Audemars Piguet specialist. Understanding the nuances of these subtle differences is crucial for collectors, as they can significantly influence the value and desirability of the watch.
Market Value and Collector's Appeal:
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