My Precisely Inaccurate Watch. Part II
What the heck is going on?
https://www.watchcrunch.com/AndreasEU/posts/my-precisely-inaccurate-watch-240256
I'm monitoring my Casio AE-1200 for six days, because I wanted to learn how much it deviates from atomic time. I checked against my Casio GMW-B5000, which is synchronised to atomic time and against the time of my smartphone which is synchronised to its networktime. I took the time in an interval of about 24 hours. So I learned quickly, that it is not a second per day fast. That was my impression, but it is not true. In the first four days it gained about 30/100s per day. The day before yesterday it was 90/100s fast against atomic time. But yesterday it was all of a sudden almost on spot. I didn't change anything. It was almost impossible for me to measure the deviation. I am clearly the biggest error in the trial. But I came out most often with a deviation of 18/100s. Today it is most often at 20/100s, but I guess it is more me than the watches who is responsible for the difference against yesterday.
I don't know how it come. It is like the Casio AE-1200 corrected itself howsoever it has done so. I keep monitoring the Casio Royale, because I am curious whether there is a pattern.
I have been there, when the first Lamy Safari fountain pen hit schools. I have been there, when the first G-Shock came into the classroom. I have been there, when the ticking of my classmates' first S...
Don't forget, quartz is affected by temperature too. So any temperature variations over the time period would have affected the results.
Don't forget, quartz is affected by temperature too. So any temperature variations over the time period would have affected the results.
Sure 🙈 I wore it yesterday but not within the last 24 hours. That would mean, that it runs significantly slower with body temperature. Maybe that my impression that it gains a second per day was not wrong, but the environmental were just different.