This Omega Constellation is a Japanese market uncommon version. The stainless steel screw observatory back case measures 34mm. across and 42.5mm. lug-to-lug. This gray dial is original and without blemishes. The hands are black and needle-thin, matching the black inset steel markers. This vintage Omega has a quick-set date feature. Notice the uncommon “Chronometer Officially certified” writing towards the lower part of the dial instead of normally finding it below 12:00. The correct Omega winding crown is installed as is the Omega signed hesalite crystal. This watch even has the grasshopper styled lugs as found on the earlier Constellation models. The caliber 1011 movement is accurate after a recent cleaning. This watch gleams.