Piaget Protocole 9151 Lapizlazuli 18k Hobnail 1970s

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 a beautiful Lapislazuli stone dial and fine cloud de Paris finish on the 18k white gold case.

- wrist size in our picture is 18cm circumference -

DIAL:

• original never touched Lapislazuli stone dial in great condition
• original hands & crown
  

STRAP & BUCKLE:

• matte black GOLDAMMER Kardinal leather strap fitting up to 20 cm wrist size / 2 mm thick
• GOLDAMMER steel buckle

CASE:

• great overall condition, showing minor traces of use
• 3- body 18k white gold case with screw-down case back
• 23 mm (without crown) / 28 mm (lug-to-lug) / 18 mm (between lugs) / 5.2 mm thick
• year: 1970s
• reference: 9151
• total weight: 29 g

MOVEMENT:

• Piaget Cal. 9P1 - manual wind
  
• 17 jewels, 18000 A/h, 52 hours power reserve
• professionally serviced 03/2025
• -7 sec/d / 270°

BOX & PAPERS:

• GOLDAMMER certificate of authenticity & service documentation card
• GOLDAMMER box

GOLDAMMER REFERENCE: #817