This watchmaker is listed in Geneva in 1896, as "Fabrique d'Horlogerie, Spécialité de petites montres fantaisies en tous genres, L. Quartier, Rue Céard, 2, Genève, Achat et vente d'articlescourants genre allemand." (Watchmaking Manufacture, Specialty of small fantasy watches of all kinds, L. Quartier, Rue Céard, 2, Geneva, Buy and sell of current German-style articles.). Rue Robert Céard is located on the left side of the lake, in the Rues-Basses, perpendicular to the Rue du Rhône, a few steps from the houses Patek, Philippe & Co. and Henri-Robert Ekegrèn (which would become Edouard KÖhn in 1890). To our current knowledge, it is unknown if there is a family relationship with the Emile Quartier Fils (Son/s) house in Les Brenets, Le Locle (Neuchâtel Mountains), founded in 184; renowned manufacturer, chronograph specialist, who would win a Silver Medal at the 1896 Swiss National Exhibition in Geneva. This manufactory -which has a branch in Geneva at 3, Rue du Mont-Blanc (today the address of Antiquorum!) - holds about twenty Swiss invention patents, and is also the owner of various trademarks: "Génie", "Genius", "Time is Money", etc. We are also unaware of a family relationship with GustaveAdrien Quartier, who seems to have been a régleur-watchmaker in Geneva before settling in La Chaux-de-Fonds. The latter also holds several Swiss invention patents. The hunting-case watch presented here, dating from circa 1895, is fitted - besides its perpetual calendar with phases of the moon, its minute-repeater and its chronograph - with a mechanism of winding by opening of the cover, sometimes denominated "remontoir perpétuel" (perpetual winding) or "remontoir invisible" (invisible winding). If this invention is not new, it is very rarely used because of its difficulty of realisation. From a purely chronological point of view, we can compare it to the following patents that we find used in the watches of: - Louis-Frédéric Lebet of Neuchâtel, according to a patent of Humbert-Ramuz & Co. of La Chaux-de-Fonds, dated March 18, 1867. It is difficult to specify here if Humbert-Ramuz & Co. is the donor of order or if Louis-Frédéric Lebet acquired the rights of the patent or the production of the "montre savonnette à remontoir invisible et mise à l'heureautomatique" (hunting-case watch with invisible winding and automatic setting); award-winning invention at the Universal Exhibition of Paris of 1867.