This is a new authentic Longines watch case/body that was removed from a new Longies HydroConquest GMT 41mm, watch model L37904966. This watch case comes complete with the crystal, ceramic bezel and movement holder ring.
The lug width of this watch is 21mm wide.
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If you are not sure if this will fit your watch or if you have any other questions then message me. I'm here to help you.