18k yellow gold, white gold lunette rim Wrist Chronometer no. ?

Case: 18k yellow gold and white gold lunette rim Dial: champagne color dial (light sand color), indicating the jump hour, minute disc and second, signed Gübelin Movement: 10''' tonneau, 18 jewels, 8 adj, Geneva seal Provenance: 1928 - Niton, Geneve 1928 - E. Gübelin, Lucerne 1994 - Antiquorum, Important Watches, Wristwatches and C...LOT 19 Geneva, Hotel Des Bergues, 10th April 1994 18k yellow gold rectangular wristwatch with champagne with painted Arabic numerals for the minutes and the seconds, aperture for the jumping-hours E. Gübelin Lucerne, 1930's. Very fine and rare rectangular, jumping-hour, 18ct gold gentleman's wristwatch. C. massive, polished, satined. D. champagne with painted Arabic numerals for the minutes and the seconds, aperture for the jumping-hours. M. 10"' Geneva Quality Hall Mark, tonneau, rhodiumed, "fausses côtes" decoration, 18 jewels, lever escapement, cut bimetallic balance, Breguet balance-spring. Dial, case and movement signed. In good condition. Dim. 23 x 36 mm. https://catalog.antiquorum.swiss/en/lots/lot-127-19