I will post a few links.. I wear the watch.
(I happen to like this company but use the links as a guide line you can buy products just as good from several other vendors)
MFJ Clock #10MFJ Solar Clock #2MFJ #3 with additional featuresMFJ Analog clock 1MFJ Analog Clock #2
My Very Accurate MFJ watchNOTE in both watch and clock catagories you can back up a level and get the full catalog page. I cherry picked.
Or as I said, you can go with other suppliers.. I like my watch.. I have a few "Other supplier" clocks that I like too. They are highly accurate, usualy within a tiny fraction of a second of exact.
Of course I do not set my clocks or watch.. The national bureau of standards does that for me.. Every day.