Which year were your vintage Eterna produced. Track down the calibre number of your watch in our timetable. Eterna calibre numbers reveals production year. I found this one list of Eterna numbers but it doesn't match at all. (Any input is highly appreciated, Thanks! Download Free Gang Starr Instrumentals With Hooks there. You need the serial number from the movement, not the number on the case. Next, we have @rene_jk. Rene is known for his vintage-breitling.com website. This is probably the best resource out there today on vintage Breitling and provides some. Does anyone have a link,.pdf, or any information on vintage Eterna serial numbers? I've tried contacting Eterna but gotten no response in 3 weeks.