Geneva, Nov 08, 2025

LOT 85

CARTIER/ EUROPEAN WATCH & CLOCK CO., FRANCE, "LOCARNO TREATIES", BLACK LACQUER, BLACK DIAMOND SET BOW AND BAND, 18K YELLOW GOLD

CHF 15,000 - 25,000

HKD 146,000 - 244,000 / USD 18,800 - 31,300 / EUR 16,200 - 26,900 / JPY 2,850,000 - 4,750,000

Sold: CHF 18,750

A fine, unique, historical, 18k yellow gold, manual wind black lacquer and gold pocket watch set with black diamonds


Grading System
Grade:
Case: 3-8

Good

Slightly scratched

Movement: 3*

Good

Overhaul recommended, at buyer's expense

Dial: 2-8-01

Very good

Slightly scratched

HANDS Original

Brand Cartier/ European Watch & Clock Co., France

Model "Locarno Treaties"

Year circa 1925

Case No. 21765

Diameter 45

Caliber 16''', 18 jewels

Signature dial and movement, case engraved

Accessories fitted box, 18k gold chain

Notes

Known as the Locarno Treaties, it involved the signing of agreements between 7 nations (Germany, France, Great Britain, Belgium, Italy, Poland and Czechoslovakia) guaranteeing the borders of Germany and France and Germany and Belgium as per the treaty of Versailles. Finally signed on October 16 1925, this pocket watch is engraved with the signature of Aristide Briand and Locarno, October 15. 1925, the day prior to the signing of the historical agreement.

Provenance

Property of Aristide Briand

Biography

Aristide BRIAND (1862 - 1932) was a French politician (served 11 terms as Prime Minister) and lawyer. He played a major role in international relations after WW1 and in 1926 alongside Gustave STRESEMAN, he was awarded the Nobel peace prize in honour of his work as minister of foreign affairs for his role in the reconciliation of French and German relations (Locarno 1925).

His dream of global safety around the world, helped by the SDN (Société des Nations / League of Nations), was advanced by the signing of the Brian-Kellog pact with the American Franck Billings Kellogg in 1928 that would outlaw wars. In 1929, he launch a new project of a European Nation known as the Briand plan for Europe. In September 1930, a resolution is signed and accepted by 45 countries. It is most likely that Aristide BRIAND received this watch as a gift during one of his many trips to the SDN in Geneva during that year.