Mar 25 2011 nbsp 0183 32 Found an old chronograph for sale that I find appealing but I know nothing about them Movement is marked quot 143 quot with no suffix Any pointers re authenticity etc

The Zenith 143 6 is based on the Excelsior Park cal Zenith cal 143 6 17 jewels manual wind chronograph 60 s 30 45 min counter 143 6 incabloc