Need Information on this 23Z Gold plated vintage

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Does It look authentic? Here's the Information the seller provide: caliber 23z n° 286.334 , Code 03703.
 
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Movement is genuine, dial is very poorly refinished. Not a watch worth consideration.
 
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As @X350 XJR said, very poorly refinished. Just for educational purposes, I'm going to point out some of the mistakes: Longines logo and inscription are both missaligned with the 12h marker, "crosshair" sub-seconds dial goes beyond the actual subdial, and the list goes on and on...