Cmak2017 0 Posted March 12, 2018 I have an issue with my new PF Nautilus, It seems to stop during the night when not in use, even after wearing it all day? Any thoughts or suggestions? Share this post Link to post Share on other sites
Glaude 1,615 Posted March 12, 2018 @GenTLe already gave you a good explanation : Quote Your problem is called "bad power reserve". It can be due to a number of factors, from you not moving enough to keep the watch charged to some problem in the movement. The only test I'd do to check if the movement is fine is to handwind it (50 turns of the crown) and see how much time it runs before stopping. At least it should be 24/30h. If less then your movement needs a service. I had a Miyota (is that a miyota 9015 based one, correct?) that had low amplitude and low power reserve and when I disassembled it the problem was in the mainspring barrel which was not properly closed. Share this post Link to post Share on other sites
narikaa 129 Posted March 12, 2018 ^^^ This Or try wearing it on your mouse hand and give it a workout Share this post Link to post Share on other sites
