|Rare 1951 2-tone 18K/SS OMEGA COSMIC TRIPLE DATE MOONPHASE with the calibre 381 in excellent condition. Beautiful crisp off-white dial set against gold dauphine hands, raised gold tear-drop marker batons, gold calendar hand, inner black 60 sec marker track, outer black calendar track with gold satin moonphase window and signed Swiss Made at 6 o'clock. Classic crisp clean dial from the swiss House of Omega. Smooth running Omega Watch Co. cal 381 Swiss 17-jewel ser. 125XXXXX manual wind movement runs great with calendar functions working. Quad-signed (crown,dial,movement,case back) 35mm (not including signed crown) rare 18K gold capped bezel with 2-tone gold shell long tapered lugs and SS case in excellent condition. Snap-on case back signed Patent + Acier Staybrite - Omega Watch Co. - Fab Suisse - Swiss Made ref. 2606-4 in excellent condition. Comes with new hi-grade red/burgundy leather strap w/matching gold buckle.