BLNR accuracy.

[Beowulf]

Originally Posted by broken_link

Just a word of caution. I have been timing mine using that app and making a burst photo with a time stamp as the second hand was at 12 o’clock.
The app itself wasn’t always precise as I saw in comparison. Unfortunately it doesn’t allow for charting the watch precision development over many days, so I can’t found that on actual data.
With the photo method I have now many months of measurements so I can trust that one.

I found this app cute but very limited and not particularly accurate. A manual mode is working better for me.

Been using this one for a long time, it's ugly but functional.
https://play.google.com/store/apps/d...tchcheck&hl=en

[wongwong5]

How accurate would you say that app is?

[Pattyb69]

I've been wearing my BLNR for a month straight for the last 20 days and it hasn't lost more than a total of 2 seconds the entire time. Its the best time keeping Rolex I've owned so far.

[F308gt4]

Originally Posted by Beowulf

Been using this one for a long time, it's ugly but functional.
https://play.google.com/store/apps/d...tchcheck&hl=en

Originally Posted by wongwong5

How accurate would you say that app is?

I’m using the watch check app also. It’s only as accurate as you are when you click the button to match the exact time. My BLNR is about +1 second since I reset the time on Oct 1st. Watch check gives me an average rate of 0.1 second/day, but I’ve noticed that the daily deviation varies from -0.9 seconds to +0.8 seconds. This likely has to do with how close I am to zero when I click the button in the app. Not perfect, but close enough for curiosity sake.

I love my BLNR, and it’s the most accurate mechanical watch I’ve ever owned. My SubC (sold when I got the BLNR) was less than +2 seconds/day.

[piratepress]

TBH, I didn't buy my BLNR for the accuracy and I couldn't care less if it's a little slow or fast. I'll never notice a couple minutes here or there, anyway. I just love the beauty and craftsmanship of it.

[broken_link]

Originally Posted by wongwong5

How accurate would you say that app is?

Toolwatch was oscillating between 0 and -1,5 thus making it useless. My watch runs ~-0,5s/d when aggregated over a week.

[teb1013]

I use Watch Tracker, it is, of course dependent on your accuracy in pushing the screen at the right moment. I usually average a number of days. My BLNR is still in the pre-purchase phase, but I will undoubtedly check it daily like I do my other watches. Over 11 days, my old Datejust is running +1.9 spd.


Sent from my iPad using Tapatalk

[Yuri.Popov]

The power of technology

[Nav01L]

Originally Posted by broken_link

Just a word of caution. I have been timing mine using that app and making a burst photo with a time stamp as the second hand was at 12 o’clock.
The app itself wasn’t always precise as I saw in comparison. Unfortunately it doesn’t allow for charting the watch precision development over many days, so I can’t found that on actual data.
With the photo method I have now many months of measurements so I can trust that one.

To be honest, I view this just as a fun thing. It’s not really that important to me how my watches run, so long as they are in the ballpark of a few seconds per day. But you’re certainly right, the concept alone of tapping a button on a particular moment forbids any real precision to begin with.

[geebob]

I have watchtracker and just like everyone else here, I use it more as a guidance to show me how much faster or slower my watch is, and for fun.

When I purchased the app, I was expecting it to be some kind of a tool to measure the accuracy of my Speed, I thoght I can use it for that. But after a while...after adding several data points, I found that it’s not. Tapping the button at the right moment is difficult. It’s a hit and miss to me. I can not be that accurate, so my result certainly is not accurate.

[broken_link]

Originally Posted by Nav01L

To be honest, I view this just as a fun thing. It’s not really that important to me how my watches run, so long as they are in the ballpark of a few seconds per day. But you’re certainly right, the concept alone of tapping a button on a particular moment forbids any real precision to begin with.

I’m a physicist by education. By averaging out that human error it should be possible to get to a decent result after 4-10 measures. But that particular tool didn’t seem doing that.

[Andad]

Originally Posted by Nav01L

To be honest, I view this just as a fun thing. It’s not really that important to me how my watches run, so long as they are in the ballpark of a few seconds per day. But you’re certainly right, the concept alone of tapping a button on a particular moment forbids any real precision to begin with.

Why not add/subtract about 0.2 sec for 'finger push' error and cancel it out.

Then consider the delay between looking at the correct web time and then your second hand?