Watch waterproof tester, can test watch up to 10 bar and with double using ways, manual handling to presure or through electric air power driving (this way need to connect to air pump and other accessories to purchase).Use this wet test after any watch repairs to ensure water tightness. With the waterproof tester to know that the watch is still waterproof after a repair. The newest Wet Tester tests the water resistance of watch cases up to 10 bar (ATM).