Vintage Mondaine “Herring” diver watch

Automatic movement - check

Colorful bakelite bezel - check

Oversize 40MM stainless case - check

This Mondaine Herring is a perfect example of how funky watches could be in the 70s.  The crown has been replaced at some point with a Rolex Twinlock screw-down crown.  The movement is slightly loose in the case when the crown is pulled out, but tight when closed.  Comes on a newer Ritche silicone strap with extra strap tang for smaller wrists.