Year codes

Submitted by J.Stephenson on October 13, 2023 - 11:40pm

I have two Bulova Acutrons day/date up/down watches. Both have M9 date codes on the case back, yet both movements are date-coded N0. Is there any info on why this may have happened, or is this a common occurrence for early-made N0 movements? Or is this a weird coincidence?

Kathy L.
Posted October 14, 2023 - 1:26pm

It is very common with Bulova for the case and movement to be a year apart.  

Geoff Baker
Posted October 14, 2023 - 8:39pm

....and remember, technically there is only ONE day between 1969 and 1970 (and the factories were probably close that day!). When we see more than a year we have questions but never for a year. The parts to assemble watches are coming from two different directions, a watch case factory and the movement department, a couple weeks of not being is sync is not a surprise at all. 

Posted October 15, 2023 - 12:56pm

So the actual year of the watch is the date code on the movement?

Geoff Baker
Posted October 15, 2023 - 8:32pm

In reply to by J.Stephenson

Technically a watch is the date of it's newest component. In that here is always a question with a vintage watch as to whether or not the movement has been replaced, when identifying and cataloging watches on the myBulova site we decided to focus on the year date of the case because that is generally what we're identifying anyway.