two and a half straight days on the wrist. This watch is phenomenal. Even the strap, which I did honestly think would be subpar due to the price of the overall piece, is actually quite nice. I am still waiting on a custom strap for it but in the meantime the stock strap is quite nice. Great case dimensions, great buckle, great dial. I'm letting my Batial patina naturally but I cant wait to see what others do with theirs. As for the movement, I know it is not regulated by Borealis but I must have lucked out as mine is running +3 seconds/day.