I just purchased two ap's with 7750 secs at 12 movements. One of them sound sturdy and in place and the other sounds much noisier and loose in the watch. I also would like AR on them and waterproofing. Does anybody on here use a trusted repairman for their 7750 movements. I tried getting katt but they do not work on 7750. I would love to use dom but I really am hesitant on sending the watches in and out of the country so much. Thanks for any help and suggestions