LeCoultre, Sentier, made for Ed. Richard, Locle, Movement No. 100557, Case No. 100557, Cal. SMV 18, 47 mm, 76 g, circa 1910

A gentleman's very fine, rare minute repeating pocket watch
Case: 18k gold, signed "C. H. Meylan, Switzerland", polished, gold dome, slide for repeating mechanism. Dial: enamel, Arabic "Breguet" numerals, auxiliary seconds, blued spade hands. Movm.: bridge movement, rhodium-plated, "fausses côtes" decoration, 29 jewels, 5 adj., 2 hammers / 2 gongs with Audemars' "all-or-nothing" repeating system, screwed gold chatons, gold screw compensation balance, index spring fine adjusting device.

LeCoultre launched this movement in 1899 and exhibited in the 1900 Paris Universal Exposition. It quickly became a very popular caliber. Cartier used it in the majority of its repeaters.