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Watch listing

Piaget Protocole Ref. 9150 Onyx Diamond

Piaget Protocole Ref. 9150 Onyx Diamond sale listing with watch details from the original listing. Details include $9,000 and Very Good Vintage Condition.

Updated Sep 5, 2026
May be an image of wrist watch and text5 photos

Observed asking price

$9,000

Status: Check availability with seller

At a glance

Listing type
For sale
First seen
Jun 10, 2026
Watches
1
Photos
5
Compare prices and view seller

From the listing

Watch details

Piaget Protocole Ref. 9150 Onyx Diamond

More Piaget market data
$9,000
Brand
Piaget
Collection
Protocole
Model
Piaget Protocole Ref. 9150 Onyx Diamond
Reference
9150
Condition
Very Good Vintage Condition
Included items
Original Leather Strap Original Buckle
Material
18k Yellow Gold
Dial
black onyx and pave9 diamond
Bracelet / strap
Original Leather Strap
Status
Check availability with seller

Listing notes

#rwb This rare reference 9150 Protocole utilizes a sharp architecture sculpted from solid 18k yellow gold, the perfect frame for an incredibly bold, asymmetric visual statement. The face is adorned with a glossy black onyx and a brilliant field of pavé-set diamonds, I think I saw this in my dream last night. NYC, Diamond District * 1970s Ref. 9150 Protocole Model * 23x28mm * 18k Yellow Gold * Split Onyx & Pavé…

Source and availability

This watch was listed on Facebook. Prices, condition, and availability can change. Check the original listing and confirm the details with the seller.

View original Facebook listing

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