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Lot Essay
The introduction of the reference 25718 in 1991 marked a significant advancement in watchmaking, notably owing to its forward-looking design. It was the world's first wristwatch to combine a tourbillon, an automatic movement, a power reserve, and a date indication.
The present timepiece stands out thanks to its elegant ivory dial paired with a yellow gold case. Elegantly sculptured teardrop lugs and the absence of a visible crown, which has been subtly moved to the case back, further highlight its streamlined design.
The caliber 2875 movement that powers the watch is nothing short of spectacular and is a true horological masterpiece. One of its most intriguing features is its unusual automatic winding mechanism. Instead of using a conventional rotor, it uses a 'hammer', a characteristic usually found in early automatic timepieces but brought back to life by Audemars Piguet for their automatic tourbillon watches. The mainspring is wound with each alternating motion of the hammer, which is made of a dense iridium-platinum alloy and swings rhythmically from side to side.
The present timepiece stands out thanks to its elegant ivory dial paired with a yellow gold case. Elegantly sculptured teardrop lugs and the absence of a visible crown, which has been subtly moved to the case back, further highlight its streamlined design.
The caliber 2875 movement that powers the watch is nothing short of spectacular and is a true horological masterpiece. One of its most intriguing features is its unusual automatic winding mechanism. Instead of using a conventional rotor, it uses a 'hammer', a characteristic usually found in early automatic timepieces but brought back to life by Audemars Piguet for their automatic tourbillon watches. The mainspring is wound with each alternating motion of the hammer, which is made of a dense iridium-platinum alloy and swings rhythmically from side to side.