A beautiful Omega Semaster PloProf 166.077 in an original 45mm stainless steel case, featuring the Omega cal. 1001 automatic movement. This PloProf is the perfect daily-driver. (For the Omega purists and collectors out there, Omega recognizes the Cal. 1001 was, at times, installed in lieu of the more common 1002). 

The Omega-service Dial and Hands are beautiful, with bright, clean colors and clear script. The crystal is clear and free of any scratches or mars. The original bezel is beautiful with a light fogging between the 40 and 50 script (as seen in photos). The bezel rotates and *clicks* smoothly with the red button depressed, as designed. 

Overall the case is in good-fair condition with obvious signs of wear, scratches, and marks. The case does not appear to have been polished and retains the original finishes. 

This PloProf includes the original 1266/237 Shark-Mesh bracelet with One (1x) additional link. The Original buckle is in good working condition. The spring return to make the buckle lift snap closed is worn, which requires the snap to be pressed down to close. This does not impede the overall locking and closure of the bracelet.