Piaget Protocole 91541 – 18k Yellow Gold, 1980s - Geometric elegance meets Piaget’s golden age of design.

The Piaget Protocole Ref. 91541 embodies the refined architectural spirit that defined Piaget’s creations of the 1970s and 80s — watches that blurred the line between jewelry and horology.

This interpretation of the Protocole captivates at first sight: a geometric 18k yellow gold case seamlessly integrated with its matching gold bracelet, forming a unified design language of clean lines and sculptural proportion. The golden dial, subtly mirroring the bracelet texture, brings harmony and sophistication in a way only Piaget could achieve.

Powered by the ultra-thin hand-wound Caliber 9P2, this masterpiece exemplifies Piaget’s pioneering work in creating the world’s slimmest mechanical movements. Delicate, precise, and impossibly elegant — this Protocole represents pure 1980s luxury.

- wrist size in our picture is 18cm circumference -

DIAL:

• original never touched golden dial in great condition matching the bracelet design
• original hands and crown

BRACELET & CLASP:

• the original Piaget integrated 18k yellow gold bracelet is fitting up to 18 cm wrist size (links can be removed to reduce the length by 4cm) / 1.8 mm thick
• 18k gold Piaget clasp with Piaget logo

CASE:

• great overall condition, showing very minor traces of use
  
• 3- body 18k yellow gold case with screw-down case back
• 25 mm (without crown) / 33 mm (lug-to-lug) / 16.5 mm (between lugs) / 5 mm thick
• year: 1980s
• reference: 91541 K51
• total weight: 75 g

MOVEMENT:

• Piaget Cal. 9P2 - manual wind
  
• 18 jewels, 19800 A/h, 36 hours power reserve
• professionally serviced 10/2025
• +5 sec/d / 280°

BOX & PAPERS:

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

GOLDAMMER REFERENCE: #1213