A fine silver and purple guilloche enamel sub miniature carriage or boudoir clock with alarm. This extremely chic and pretty clock, in superb condition, the superb engine turned star burst pattern, underneath the purple enamel, with black enamel border. Oval gilt bronze dial with arabic numerals, the dial signed A L’Emeraude for the retailer, and 8 days. The underside of case stamped 2313467, with Swiss rampant bear silver mark and 0.935 silver content mark. The inside back door with same number, Swiss rampant bear and silver content mark, argent dore, and stamped Eterna, for the maker. Eterna are a Swiss watch company founded in Grenchen, Canton Solothurn, on 7 November 1856 by Josef Girard and Urs Schild. The superb full plate 8 day movement with lever escapement and bell, for the alarm, a rare feature in this small clocks. Swiss circa 1910. 5.9cm High by 4.4cm Wide and 3.2cm Deep