Fine and unusual small sidereal counter. J. Auricoste, circa 1910.

Fine and unusual small sidereal counter. J. Auricoste, circa 1910. J. Auricoste, Horloger de la Marine, 10, rue la Boetie a Paris, circa 1910. Fine and unusual small sidereal counter. C. Three-body mahogany deck-watch type box. Brass bowl with screwed bezel. D. White enamel, outer Arabic sidereal seconds ring and subsidiary small 60 sidereal minute register. Blued steel hands. M. 43 mm. (19Ó'), brass, three-quarter plate, 15 jewels, with cylindrical pillars, going barrel, pivoted detent escapement, cut bimetallic balance, blued steel balance spring with terminal curve. Signed on the wooden box, dial marked "TS" for sidereal time. Dim. 5 x 8 x 12 cm.