Launched in 1957, the 9P caliber was groundbreaking for 2 reasons: standing at 2 mm, it was the thinnest manual-wound movement ever made for wristwatches, and its 20.5 mm diameter was much larger than the standard, therefore allowing for larger cases.

Its slimness was not only a technical accomplishment, it also allowed the manufacture to fit dials made of hard stones while retaining a thin profile, like this flawless 18k Piaget with a blue Lapis Lazuli stone dial and 18k Hobnail case which comes with the original Piaget leather strap and 18k yellow gold Piaget buckle.

CASE:

• great overall condition, showing minor traces of use (unpolished)
• 3- body 18k yellow gold Hobnail case with screw-down case back
• comes with the original Piaget strap and 18k yellow gold buckle
• 23 mm (without crown) / 28 mm (lug-to-lug) / 17 mm (between lugs)
• Year: 1970s
• Ref.: 9151

MOVEMENT:

• Piaget Cal. 9P1 - manual wind
  
• 17 jewels, 18000 A/h, 52 hours power reserve
• professionally serviced 10/2023
• +19sec/d / 320°

DIAL:

• original never touched blue Lapis Lazuli stone dial in flawless condition
• original hands, dial, crown & crystal