Quote:
Originally Posted by Michael N Q8
I have a 2018 BLRO and have noticed this problem. I have taken it to the local service center twice to be regulated. This is about 3-6 months ago.
What I can say for sure is that when the watch is wound and kept on wrist it maintains time within 2 sec per day. If left to run down, it loses time increasingly. 
I have not taken any data but after reading these threads its clear mine has this problem. I will try to gather some data and post it. |
All mechanical watches when the mainspring runs down could loose a few seconds, but we are only talking about a few seconds and not minutes or hours. All mechanical watches run better and more accurate when the mainspring is at peak power -reserve. So even when worn will do no harm whatsoever to give a manual wind once a week or so.