I have a datejust 126234 bought new at AD a month ago. The first day or two on wrist it was roughly a second or two slow per day. Then it was dead on for a couple weeks. Slightly gaining maybe 1 second per day. Then all of a sudden I noticed it’s slow by 5 seconds.
I realize this wasn’t scientific but I wanted to let you know what I’ve seen on wrist.
I do have a timegrapher and need to do a good, controlled evaluation of the watch.
When on the time grapher fully wound and after sitting there for 30 minutes the amplitude was roughly 270.
I have a solids understanding of how to correctly test it on the timegrapher so I’ll do that and post.
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