mondodec
216
RE the Dynamic
You have a nice 'Bullseye' Dynamic with a calibre 752 in case number 166.079. These calibres are siblings of the famous mid-500s series of movements. Yours has everything right. Hands are correct and thankfully no-one has polished the hell out of the case, and the brushed finish is still visible.
Your dial is probably the secondmost sought-after dial - very neat!
Suggest you do a a search of completed listings at that on-line auction site to establish normal value. &52s arent yet up to the values of the 565s but theyre getting there
Who knows what premium collectors would put on an engraved Mets watch. One for a Mets supporting horological petrolhead methinks 
Cheers
desmond
omega-constellation-collectors.blogspot.com