A Gunmetal Open Face Triple Calendar Moonphase Pocket Watch, A. Robert, 52.00 mm case diameter, white dial with gilt accents, Arabic numerals with gilt dot accents, subdials at 3, 6, 9 and 12 o'clock for day, seconds, date and month respectively, aperture at 6 o'clock for moonphase, fluted onion crown, exhibition crystal over movement, stem wound and button set 7 jewel movement signed A. ROBERT. Inner case back stamp: A. ROBERT SWISS. 58.60 dwts.