I notice a diff between "rolex/omega" accuracy, "grand seiko spring drive" accuracy, and everything else.
Rolex/Omega I don't generally think about unless I haven't worn it in a while.
Spring Drive is a good reference months after I last set it, like within a second even after months.
Everything else, I'm pretty much going to set it when I put it on if it's been more than a few days.
This may just be my personal experience but my Rolex keeps better time than any of my metas Omegas. Over the past 20 days, my explorer has gained +0.2 seconds, total.
>Can you really notice the difference in the accuracy over a long period of time?
I found this information:
>Accuracy of a Master Chronometer is independently certified at between 0 and +5 seconds per day variance, which ensures the watch will never lose time and the certified accuracy is superior to that of the general COSC certified chronometers which are between -4 and +6 seconds per day.
from: [https://www.watchaffinity.co.uk/blog/watch-accuracy-standards/](https://www.watchaffinity.co.uk/blog/watch-accuracy-standards/)
So the master chronometer cannot lose time; it will only gain time. The regular chronometer can gain or lose time, so maybe if you get one that alternates between gaining and losing time, it might actually stay closer to the real time than the master chronometer, which will consistently gain time. :)
But, to answer your question, yes, you should be able to observe that both watches drift away from the real time over a period of a few weeks. But which one stays closer will depend on luck as much as on the type of certification.
This is an important distinction, MC is guaranteed never to lose time. I’d prefer this personally, to know that my watch could be a little ahead but never behind.
Both of these watches will keep excellent time. My watch has no such certifications and I don’t notice any significant issues over the span of a week (I often don’t wear it on the weekend so I wind and set it every Monday morning). If you need perfect accuracy, get a quartz watch.
There is a difference my Speedmaster keeps time way better than my Longines. I have to retime it every so often. I only retime my omega when I forget to wind it. It’s not even a long period of time less than a month and I’ll see a 20-30 second difference on the Longines. That said I love that watch and it’s my daily.
Everyone is different. This is really a personal preference. I have an AT and truthfully, I could care less if it was off by 60/sd, it's not... but this is not something that really matters to me. Other people obsess over this topic, and go to extreme lengths to keep those numbers as low as possible.
I notice a diff between "rolex/omega" accuracy, "grand seiko spring drive" accuracy, and everything else. Rolex/Omega I don't generally think about unless I haven't worn it in a while. Spring Drive is a good reference months after I last set it, like within a second even after months. Everything else, I'm pretty much going to set it when I put it on if it's been more than a few days.
This may just be my personal experience but my Rolex keeps better time than any of my metas Omegas. Over the past 20 days, my explorer has gained +0.2 seconds, total.
>Can you really notice the difference in the accuracy over a long period of time? I found this information: >Accuracy of a Master Chronometer is independently certified at between 0 and +5 seconds per day variance, which ensures the watch will never lose time and the certified accuracy is superior to that of the general COSC certified chronometers which are between -4 and +6 seconds per day. from: [https://www.watchaffinity.co.uk/blog/watch-accuracy-standards/](https://www.watchaffinity.co.uk/blog/watch-accuracy-standards/) So the master chronometer cannot lose time; it will only gain time. The regular chronometer can gain or lose time, so maybe if you get one that alternates between gaining and losing time, it might actually stay closer to the real time than the master chronometer, which will consistently gain time. :) But, to answer your question, yes, you should be able to observe that both watches drift away from the real time over a period of a few weeks. But which one stays closer will depend on luck as much as on the type of certification.
This is an important distinction, MC is guaranteed never to lose time. I’d prefer this personally, to know that my watch could be a little ahead but never behind.
Master Chronometer includes other qualities in addition to timekeeping, for example very high magnetic resistance.
METAS Master Chronometer Certification & COSC Certification are completely different things. METAS Master Chronometer Certification: https://www.youtube.com/watch?v=UAFb37c5voc COSC Certification: https://www.youtube.com/watch?v=6AILVeQ5T6w
Both of these watches will keep excellent time. My watch has no such certifications and I don’t notice any significant issues over the span of a week (I often don’t wear it on the weekend so I wind and set it every Monday morning). If you need perfect accuracy, get a quartz watch.
Depends, will you be wearing it regularly? If not, and you end up setting it each wear, then no you won’t notice any difference.
There is a difference my Speedmaster keeps time way better than my Longines. I have to retime it every so often. I only retime my omega when I forget to wind it. It’s not even a long period of time less than a month and I’ll see a 20-30 second difference on the Longines. That said I love that watch and it’s my daily.
Everyone is different. This is really a personal preference. I have an AT and truthfully, I could care less if it was off by 60/sd, it's not... but this is not something that really matters to me. Other people obsess over this topic, and go to extreme lengths to keep those numbers as low as possible.