• USD20 000 - 25 000
• EUR14 000 - 17 000
• CHF22 000 - 27 000
• CHF 18 000

Watch: C. Two-body, “forme collier”, by Amy Gros, master mark AG, polished, bezel release catch in the crown. Hinged and sprung gilt metal cuvette. D. White enamel with radial Roman numerals, outer minute track, winding arbor between 1 and 2 o’clock. Blued steel Breguet hands. M. 40 mm. , frosted gilt, full plate, waisted cylindrical pillars, fusee and chain, verge escapement, three-arm brass balance, flat balance spring, balance cock pierced and engraved with foliate initials “ET”, silver regulation dial. Cuvette and movement signed, case with Amy Gros mastermark and French hallmarks. Diam. 51 mm. Key: C. Three-body, "forme collier", polished bezels, glazed on both sides, flat band, swivel loop. D. White enamel on the front with day (in black) and date (in red) indications. Blued steel hands. Back with polished gold plate, with moon phase aperture, enameled moon disc, age of the moon engraved on the border. M. All the functions advance by depressing a small lever protruding from the band each time the key is inserted in the winding square. Dial signed.