Is there such a thing as zenith cal. 23.1?
Zenith branded UT6498?
Thnx!

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Sounds like very reasonable explanation.Yoda wrote:Possibly, but as far as I know they are always marked with the number from Zenith. I doubt that an "ordinary" ETA649X reworked for/by Zenith would leave Zenith without the caliber number even if the finish obviously is a bit unusual.
you are right it is 6497...thnx for inputs both!unreformed66 wrote:That's a 6497, not a 6498. And it's real. I've seen others through the years.