Rossel & Fils, successors de J. F. Bautte à Genève, No. 80918. Made circa 1860. Fine 18K gold and enamel, rose diamond-set folding lorgnette with concealed watch. Spring-loaded front cover decorated with a rose diamond-set pattern on translucent imperial blue guillocheenamel ground, back and handle engraved with foliate strapwork against an engine-turned background. White enamel, radial Romannumerals, outer minute ring, set in gold plate with winding, setting and regulating apertures. Blued-steel “spade” hands. 18.2 x 32 mm, rectangular, gilt brass bar calibre, 8 jewels, cylinder escapement, plain gilt brass three-arm balance, blued-steel flatbalance spring. Signed on the dial plate. Dim. 83 x 22 mm. Notes J. Rossel & Fils Formerly the long established firm of J. F. Bautte & Cie, founded in 1790. Rossel signed “Successors to J.F. Bautte a Genève ” between 1860 and 1883. The company won First Class medals at the Great Exhibition in London in 1851 and Paris 1855. See: “Dictionnaire des Horlogers Genevois”, Osvaldo Patrizzi, Antiquorum Editions, 1998, pp. 353.