16 months old and back to rolex for repair

[Mr bluecity]

Bought my DJ 41 brand new back in December 2017, basically long story short, for no apparent reason for the last 6 weeks I noticed it started losing 3-5 minutes everyday. I wear my Rolex day and night and either halfway through the day or first thing in the morning it had lost time. The final straw was when I put my watch away for about 12 hours and when I got it back out it had lost 3 hours, anyway couple of weeks ago I went back to my AD and no questions asked have sent it back to Rolex under guarantee, i should get it back in a couple weeks, il let you know how I get on.