Accuracy

Anything under 1.0 for beat error is where you want to be. Your rate is outstanding (try it in multiple positions and then avaerage them)….then set the exact time, wear it for a week and see how it does “in real life.” The PowerMatic 80s have been extremely accurate and reliable for me. For the money, they’re still really hard to beat.

Yes, these are good values. What says more than anything about the health of a movement is the amplitude reading, which is not shown. But it really is only a data point, and doesn't say all much about the quality of a movement. The values will also likely change over time, as lubricants settle or evaporate.

Take this picture for example:

This is for a cheap ST36 movement which I had just taken apart, lubed, put back together and transferred into a case. These are good readings, but it doesn't change that this is a bargain basement movement.

I wanted that piece for awhile with that same dial color😍

That's actually VERY good 👍

That's a great looking Mido, and based on the readings, appears to be an overall great watch.

Very good numbers

The only way to verify is to compare with realtime reading of the watch. I found out that changing the watch position when using the app will affect the accuracy reading (e.g. dial facing up/down, flat on surface or not, etc).

Last weekend I regulated the watch to 0 spd reading on the app but the watch was actually running +15 spd on the next day. So I re-measured the accuracy several times with different positions until I got the reading closest to +15 spd, then I regulated the watch & measured it using the exact same position again. Today the watch has been truly running at 0 spd 🎯

To get the amplitude measurement, go to the options in the app and set the detection algorithm to experimental. Then you also need to know the lift angle, which you can find (most probably) on calibercorner or similar websites.

Assuming it's from the Powermatic 80 family, lift angle is 50°

Thanks everyone, appreciate it.