Dear All I have bought my Rolex Submariner 2014 ( 2nd Hand ) and its been great all the time Swimming never take off shower never take off working great maybe evt 3-4 seconds in 2 or 3 weeks differal ... So all Good ... then I thought I should maybe do an overhaul ..... please see attached answer from Rolex Thailand ...... So I dont know what to do .... Thanks !Scan 1.pdfScan 1.pdf