Only Online Auction

Geneva, Apr 07, 2021

LOT 146

Unsigned, attributable to Marius LeCoultre
"Boule de Genève" pendant

CHF 1,000 - 1,500

EUR 950 - 1,400 / USD 1,100 - 1,650 / HKD 8,400 - 12,600

Sold: CHF 1,250

A very fine, pendant mechanical watch, yellow gold with pearls and diamonds, in blue enamel

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Image Image

Grading System
Grade: AA

Very good

Case: 2-8

Very good

Slightly scratched

Movement: 2*

Very good

Overhaul recommended, at buyer's expense

Dial: 2-8

Very good

Slightly scratched

Brand Unsigned, Geneva

Model attributable to Marius LeCoultre

Year 1900

Case No. 11 752

Material yellow gold with pearls and diamonds

Diameter 19mm

Caliber Lever escapement


Movement based on the Swiss invention patent No. 114, delivered on January 12, 1889, to Marius Lecoultre, for a “Mécanisme de remontoir de montre à commande horizontale”.
Boule de Genève
The “Boule de Genève” watches incorporate the bezel winding system patented by Marius Lecoultre (1847-1915) of Geneva (Swiss invention patent No. 114, dated January, 12, 1889). He was the son of Eugène Lecoultre (1819-1882), Genevan watchmaker who invented the perpetual calendar with rétrograde (fly-back) date (circa 1850).
The majority of the “Boule de Genève” is manufactured with an 8’’’ double-plan movement (with cylinder or lateral lever escapement). It can sometimes be found with smaller movements, 7’’’ or 6’’’ and very occasionally with a movement of 5’’’. The realisation of this movement is already in itself a technical feat but to execute it in such a small dimension is a real “tour de force”.
Some of these movements were inserted into brooches or bracelets by the best jewellers of Geneva; they also often subcontractors of the great manufactures.
If the majority of them are unsigned, some have been bought or possibly produced by major Genevan manufactures such as Patek Philippe, who presents one during the World’s Columbian Exposition in Chicago in 1893. Later Cartier, Paris, also produces “Boule de Genève”-type watches.


The purchase price payable by a buyer will be the sum of the final bid price plus the buyer’s premium, together with any applicable sales or compensating use tax. In addition to the hammer price, the buyer’s premium is payable as follows: 25% of the hammer price on each lot.

Important notice – Special conditions Please look carefully at all the photos as they are an integral part of the description. Any defect not mentioned in the descriptions but visible on the photos will be considered as described and cannot lead to any claim. The dimensions are given as an indication and may slightly differ from the measures mentioned by the manufacturers especially for contemporary watches. The photos are not retouched. Colors may differ from reality. For timepieces, we guarantee neither the functioning nor the precision of the movement, nor the water-resistance of the case. In addition, please note that movements, parts of mechanisms or cases may be incomplete. The lots are sold “as is”, described to the best of our knowledge and cannot be returned. Once the online bid is placed by the bidder, it cannot be cancelled.