The video show: we are testing our watch case in 30M water, waterproof degree 50 ATM,testing time: 10minutes. Normally, It may take 5 minutes for testing the case 10 TAM To ensure best standards are continually maintained, all our procedures are methodically and constantly reviewed.We monitor cleaning standards, client satisfaction, health and safety, security procedures and training programs on an ongoing basis to ensure our quality control targets are always met. Our quality management team report to the board regularly on each of these key performance indicators.