Rolex Forums - Rolex Watch Forum - View Single Post - IWC Mark XVIII Le Petit Prince Blue

richierichie · 27 July 2018, 12:58 AM

I've only had mine for a year. I typically check the accuracy the first time a get a new (to me) watch. I had tested my Mark XVIII LPP to be ~+4 sec. after the first 24 hours.

Maybe a few weeks later when I left the watch unworn and set the time, I checked again and it was ~+7 sec after 24 hrs.

I hadn't really checked the accuracy after that, but I feel it's hovered around the +6-7 sec per day.

I always do crown up by default (for no good reason), btw.

I really should get myself to test in different orientations, to see if I can create a habit to keep the accuracy even tighter!

27 July 2018, 12:58 AM	#11
richierichie "TRF" Member Join Date: Nov 2017 Real Name: Rich Location: Chicago Watch: IWC Mark XVIII Posts: 18	I've only had mine for a year. I typically check the accuracy the first time a get a new (to me) watch. I had tested my Mark XVIII LPP to be ~+4 sec. after the first 24 hours. Maybe a few weeks later when I left the watch unworn and set the time, I checked again and it was ~+7 sec after 24 hrs. I hadn't really checked the accuracy after that, but I feel it's hovered around the +6-7 sec per day. I always do crown up by default (for no good reason), btw. I really should get myself to test in different orientations, to see if I can create a habit to keep the accuracy even tighter!