OMEGA 'COSMIC' REF. 2473 CALENDAR AND MOON PHASES YELLOW GOLD WRISTWATCH OMEGA 'COSMIC' REF. 2473 CALENDAR AND MOON PHASES 18kt yellow gold case, snap-in case back, shaped lugs, crown marked, silver dial, black and blue graphics, applied hour markers and Arabic numerals, double window date display, calendar on outer sphere, moon phases, seconds at 6 o'clock, manual winding movement cal 381, original brown leather strap, metal buckle marked Omega, plastic glass, gr. 42. Diam. mm 34