
PIAGET Square Watch in Yellow gold
The magnificent PIAGET Square watch in 18-carat yellow gold, from the 1970s, featuring a Caliber 9P manual-winding mechanical movement and an 18-carat yellow gold Milanese mesh bracelet. Introduced in 1957, the Caliber 9P movement—measuring 2 mm in thickness and having a diameter of 20.5 mm—was the thinnest hand-wound movement ever created for wristwatches. 18-carat gold case with a numbered screwed caseback. Dial signed PIAGET. Master’s hallmarks: eagle’s head and owl. Movement service due in 2026. Length: 17 cm. Width: 1.7 cm.
Original: $8,763.00
-65%$8,763.00
$3,067.05More Images








PIAGET Square Watch in Yellow gold
The magnificent PIAGET Square watch in 18-carat yellow gold, from the 1970s, featuring a Caliber 9P manual-winding mechanical movement and an 18-carat yellow gold Milanese mesh bracelet. Introduced in 1957, the Caliber 9P movement—measuring 2 mm in thickness and having a diameter of 20.5 mm—was the thinnest hand-wound movement ever created for wristwatches. 18-carat gold case with a numbered screwed caseback. Dial signed PIAGET. Master’s hallmarks: eagle’s head and owl. Movement service due in 2026. Length: 17 cm. Width: 1.7 cm.
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Description
The magnificent PIAGET Square watch in 18-carat yellow gold, from the 1970s, featuring a Caliber 9P manual-winding mechanical movement and an 18-carat yellow gold Milanese mesh bracelet. Introduced in 1957, the Caliber 9P movement—measuring 2 mm in thickness and having a diameter of 20.5 mm—was the thinnest hand-wound movement ever created for wristwatches. 18-carat gold case with a numbered screwed caseback. Dial signed PIAGET. Master’s hallmarks: eagle’s head and owl. Movement service due in 2026. Length: 17 cm. Width: 1.7 cm.






















