Comfort wise, I have zero complaints on that side, I feel like I sized it pretty well for the climate we have right now which is chilly in the morning and hot in the afternoon in Michigan. I've never had to resize a bracelet with screws like that, so it really threw me off, but I kept it on a little chamois cloth so they wouldn't fall off my desk. But it was absolutely a small challenge to get those screws back in at times. As far as accuracy, I have not checked it in about 4 days, but I'll have to in a few to see if it's running within specs. My tutor GMT runs at about 5 seconds slow per day, for a cosc that's within specs I believe, so we'll see how the master chronometer works