AUDEMARS PIGUET | REFERENCE 25643 A YELLOW GOLD TOURBILLON WRISTWATCH, CIRCA 1986

Dial: giltCalibre: cal. 2870 automatic, 32 jewelsCase: 18k yellow gold, snap on backCase number: 148Closure: 18k yellow gold Audemars Piguet bracelet and claspSize: 32.5 mm length x 28.5 mm width, bracelet circumference approximately 165 mmSigned: case, crystal and movement

In 1986, Audemars Piguet released the new calibre 2870. It was the first production of a tourbillon with automatic winding. The movement with a size of 7.2 mm in diameter and a height of 2.5 mm, it was the smallest tourbillon produced at the time. What further highlights this example is its rare 18k gold two-tone Audemars Piguet bracelet.