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The Encyclopedia of Horology

Wristwatch · Dress watch

Piaget Protocole Ref. 9154

Partially verified

This 1970s Piaget Protocole wristwatch, reference 9154, is constructed with an 18K white gold case measuring 25mm by 27.5mm. The rectangular case features beveled corners and a vertical surface texture. The watch is equipped with a glossy black dial featuring silver text and white gold dauphine hands. The timepiece is fitted with a black leather strap and an original 18K white gold Piaget tang buckle. It is driven by an unspecified movement. The auction description reports that the watch exhibits very gentle signs of use with no evidence of previous polishing, and notes that the hallmarks and factory engravings remain sharp. The service history of the timepiece is unknown.

Front view of the 1970s Piaget Protocole, reference 9154, featuring an 18K white gold case and glossy black dial.
Front view of the 1970s Piaget Protocole, reference 9154, featuring an 18K white gold case and glossy black dial. — Craft & Tailored. Rights pending — permission not yet requested. Original source

Catalogue identity

Source
craftandtailored.com
Category
Wristwatch · Dress watch
Maker / attribution
Piaget
Reference
9154
Catalogue / lot identifier
PGP9154
Source-reported date
1970s
Source-reported place
Switzerland
Source-reported serial
37XXXX

Source-reported attribution and specifications are not independent authentication. A listing does not establish present ownership, current display, availability or permission to reproduce.

Object description

Case Construction

The watch case is crafted from 18K white gold and measures 25mm by 27.5mm. The design is primarily rectangular and incorporates beveled corners, creating an architectural profile. The surface of the case is decorated with a vertical texture. According to the auction description, the case has a slight curve, and the crown is original but unsigned.

The condition of the metal is reported as having very gentle signs of wear. The auction description states that there is no evidence of previous polishing, and that the factory engravings and hallmarks remain crisp and deep.

Evidence for this section
  • “The mostly rectangular case features beveled corners for a more architectural shape along with an ornate vertical texture to the surface and a subtle curve for added shape.”
  • “The sharp case exhibits only very gentle signs of use, with no evidence of previous polishing present.”
  • “The hallmarks and factory engravings remain very crisp and deep throughout.”

Dial and Hands

The timepiece features a glossy black dial with silver printed text. The dial is described as being in a well-preserved state, containing only a small mark of age located around the 4 o'clock position.

The hours and minutes are displayed via white gold dauphine hands. The auction description notes that these hands are in excellent condition.

Evidence for this section
  • “The original glossy black dial with silver printed text is very well preserved, showing no damage and a nominal element of age around 4 o'clock that is almost invisible to the naked eye.”
  • “The white gold dauphine hands are in excellent condition as well.”

Strap and Accessories

The watch is presented on a two-piece black strap. It includes an original 18K white gold Piaget tang buckle. No additional accessories are provided with the timepiece.

The watch is reported to be in working order, although the seller notes that the service history is unknown and that a movement service can be provided upon request.

Evidence for this section
  • “The watch comes supplied on a 2pc black strap with the original 18K white gold Piaget tang buckle.”
  • “The watch is keeping time, but the service history is unknown. A movement service can be provided upon request.”

Open research questions

  • What is the specific movement caliber used in the reference 9154?
  • What is the full serial number beyond the initial four digits provided?

Source evidence

Recorded claims and source quotations for Piaget Protocole Ref. 9154
FieldSource-reported valueSource quotation
Case ConditionUnpolished“no evidence of previous polishing present”
DialGlossy black with silver text“The original glossy black dial with silver printed text is very well preserved”
CrownUnsigned“The unsigned signed crown is original.”

Visible details

  • Vertical texture on the bezel surface
  • White gold dauphine hands
  • Rectangular case with beveled corners
  • Original 18K white gold tang buckle

Research qualifications

  • Service history is unknown
  • Movement is not specified or photographed

Photograph identity and source facts were screened before import; rights clearance remains pending.

Consulted source

ساعت مچی Piaget Protocole 18K White Gold رفرنس 9154

Reviewed 2026-11-02 · Record 8269f5dad9

Terms in this record

Glossary explanations for terms named in this object’s record.

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