Piaget Square 9775 Lapis Onyx 18k Diamond 1970s

A pinch of onyx, a tea spoon lapis and a handful of diamonds – et voila!

This Piaget took our breath at first sight. This geometric forms combined with the forged 18k white gold bracelet, Onyx and Lapislazuli stone dial with factory diamond setting on dial and bezel, alpha handset and classic Piaget logo are true art. This watch is carrying 175 diamonds in total – 120 on the dial and 55 on the bezel.

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 stone and diamond dial.

– wrist size in our picture is 18cm circumference –

DIAL:

• original never touched Onyx and Lapislazuli stone dial with 120 factory diamonds in the center in flawless condition
• original hands and crown
• the Lapis stone at the bottom has hairline crack

BRACELET & CLASP:

• the original Piaget integrated 18k white gold bracelet is fitting up to 18 cm wrist size (links can be removed to reduce the length by around 2 cm) / 1.9 mm thick
• 18k white gold Piaget clasp with Piaget logo

CASE:

• great overall condition, showing minor traces of use at the case back
• 3- body 18k white gold case with screw-down case back
• 30 mm (without crown) / 31 mm (lug-to-lug) / 20 mm (between lugs) / 5 mm thick
• Year: 1970s
• Ref.: 9775 A6
• total weight: 95 g

MOVEMENT:

• Piaget Cal. 9P2 – manual wind
• 18 jewels, 19800 A/h, 36 hours power reserve
• professionally serviced 02/2025
• +6 sec/d / 280°