Thanks for taking the time to prepare and share this video. My QD-20 arrived today, and the instructions on the box are rather sparse, so having this to refer to is a godsend.
I didn't realise they have been available for some time until I stumbled onto one on Amazon, brilliant little machine, and will resurrect some of my old pieces that were inaccurate.
@@alexb8670 It is mainly designed to demagnetize mechanical watches, however I've used it on an ana-digi quartz with no ill effect. I suppose the only thing of concern is if it affected the rotor in the ana-digi but from the research I did it seems it's not an issue.
Thank you for the explanation! A quick question, so the accuracy can be measured down to 0.1s/d right? Since there are three digits, I wonder whether it can measure 0.01 seconds?
Do you know how much resistance should be seen through the negative battery contact and the positive plate. I checked for good continuity and there isn’t a short but the resistance is only about .4 to .6 ohms. I would suspect this must have some resistance to produce current in the battery when one is installed.
Not that I am aware of. I can say that in the 2.5 months since making the video the watch has only gained 3 seconds, so a little over 1 second per month, which is a great improvement over the initial setting.
Why so many watch repairers are resistant to admit these exist? Spoke to x2 and they say "there is no such machine" when talking about restarting quartz watches lol :D
This is a great machine for the DIY crowd, but it's accuracy is still not up to the standard of professional quartz timegraphers. But it is perfectly adequate for general everyday watch use and far more accurate than a general mechanical movement watch.
@@mariomartinelli4467 I bought the same through aliexpress it came fine and works very well so appreciate this review, I have working all my watches all BUT the "like new" Rotary I bought it for - even got working a very old Accurist watch didn't seem to work but I could see the motorise function on the arms and then it seemed to work. No idea whats wrong with the rotary, its like a short or something.
Thanks for taking the time to prepare and share this video. My QD-20 arrived today, and the instructions on the box are rather sparse, so having this to refer to is a godsend.
Glad it helped
Where did you order from? (if you don't mind me asking)
these are God sent. almost bought horotec, saved 700 bucks with this little boxie
I didn't realise they have been available for some time until I stumbled onto one on Amazon, brilliant little machine, and will resurrect some of my old pieces that were inaccurate.
@@mariomartinelli4467 they're great, did you mean they demagnetize mechanical watches or quartz? I didn't try that function with mine. thanks
@@alexb8670 It is mainly designed to demagnetize mechanical watches, however I've used it on an ana-digi quartz with no ill effect. I suppose the only thing of concern is if it affected the rotor in the ana-digi but from the research I did it seems it's not an issue.
@@mariomartinelli4467 if it's not too much trouble, can you tell me how to use demagnetizer function? I am still not sure😅
@@mariomartinelli4467 the detailed instructions are the only thing missing.... but great little machine
hope sarah n tuned had the best pride month ever!
Thanks for showing how it works.
No problem!
Great review mate and thanks.
No problem 👍
Hi Thanks for the video very useful cheers.
Glad it was helpful!
Thank you for the explanation! A quick question, so the accuracy can be measured down to 0.1s/d right? Since there are three digits, I wonder whether it can measure 0.01 seconds?
How did you regulate it, does it have a variable resistor/capacitor or something?
Do you have to take the little battery out to make it spin around faster or leave it in? Thx
You can leave the battery in, the mechanical side will still be exercised without any effect on the circuit.
Do you know how much resistance should be seen through the negative battery contact and the positive plate. I checked for good continuity and there isn’t a short but the resistance is only about .4 to .6 ohms. I would suspect this must have some resistance to produce current in the battery when one is installed.
Really appreciate this, Mario! One question: how to regulate vs. check accuracy?
I use a Bulova Accurist as my time reference as it's generally has less than 10 seconds per year accuracy.
Hello How this device is working do you have any idea?
Thanks for this video! Is there any way to choose a gate time for the accuracy function, or is it always set for 10 sec? Thanks again!
Not that I am aware of. I can say that in the 2.5 months since making the video the watch has only gained 3 seconds, so a little over 1 second per month, which is a great improvement over the initial setting.
Why so many watch repairers are resistant to admit these exist? Spoke to x2 and they say "there is no such machine" when talking about restarting quartz watches lol :D
This is a great machine for the DIY crowd, but it's accuracy is still not up to the standard of professional quartz timegraphers. But it is perfectly adequate for general everyday watch use and far more accurate than a general mechanical movement watch.
@@mariomartinelli4467 I bought the same through aliexpress it came fine and works very well so appreciate this review, I have working all my watches all BUT the "like new" Rotary I bought it for - even got working a very old Accurist watch didn't seem to work but I could see the motorise function on the arms and then it seemed to work. No idea whats wrong with the rotary, its like a short or something.
@@afoster1621 Sometimes broke is broke, lol. Probably the circuit, as the tracks can corrode and oxidise. Best of luck.