Piaget 9131 Opal Diamond Square 1989

This Piaget took our breath at first sight. These geometric forms combined with the forged 18k yellow gold bracelet, Opal stone dial with factory diamond setting, alpha handset and classic Piaget logo are true art.

Launched in 1957, the 9P caliber was groundbreaking for 2 reasons: standing at 2mm, it was the thinnest manual-wound movement ever made for wristwatches, and its 20.5mm 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 Opal stone dial and the original papers from the first buyer.

- wrist size in our picture is 18cm circumference -

CASE:

• great overall condition, showing very minor traces of use at the case back
• 3- body 18k yellow gold case with screw-down case back
• 23 mm (without crown) / 23 mm (lug-to-lug) / 23 mm (between lugs) / 5 mm thick
• Year: 1989
• Ref.: 9131 C4
• total weight: 106 g

MOVEMENT:

• Piaget Cal. 9P2 - manual wind
  
• 18 jewels, 19800 A/h, 36 hours power reserve
• professionally serviced 01/2025
• +15 sec/d / 310°

DIAL:

• original never touched opal stone dial with 20 factory diamonds in the center in flawless condition
• original hands and crown

BRACELET & CLASP:

• the original Piaget integrated 18k yellow gold bracelet is fitting up to 18.5 cm wrist size (links can be removed to reduce the length by 1.5cm) / 1.8 mm thick
• 18k gold Piaget clasp with Piaget logo

BOX & PAPERS:

• comes with original certificate from first purchase 1989 in Japan

GOLDAMMER REFERENCE: #866