Swiss gold split seconds chronograph with recorder Circa 1907

Yellow gold split seconds chronograph with recorder by Ulysse Nardin
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A Swiss 14k yellow gold  split seconds chronograph, patented minute recorder, made for the russian market by Ulysse Nardin, circa 1907, Retailed by I. Volkovb or U. Borkobr (Russia), 14K yellow gold, open-face, keyless winding, round-shaped, pocket watch, made for the Russian market, 1/5 second chronograph, split seconds, instantaneous 30-minute recorder.
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Diameter: 52.5 mm
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Signed: Ulysse Nardin
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Movement based on the Swiss invention patent No. 34 029, delivered on July 8, 1905, to Société Anonyme de la Fabrique d’Horlogerie Le Coultre & Cie, Le Sentier (Vallée de Joux), for a “Compteur instantané perfectionné aux pièces d’horlogerie à chronographe” (Instantaneous perfected recorder for horological pieces with chronograph).
Copy of the invention patent; Extract from the Archives.