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【Watch Waterproof Tester】It is convenient for you to observe which part of the watch is not waterproof with the transparent cylinder. Designed for testing the water resistance of the watch cases. The air pressure can be adjusted up to 6 ATM, which means you can test watch with waterproof level not above 6ATM

【Watch Waterproof Tester】It is convenient for you to observe which part of the watch is not waterproof with the transparent cylinder. Designed for testing the water resistance of the watch cases. The air pressure can be adjusted up to 6 ATM, which means you can test watch with waterproof level not above 6ATM

【Principle】Pressurization to the sealed box can simulate the state of the product dozens of meters underwater. Pressure difference between the inside and outside of the product will be generated after the pressure relief of the sealed box. Air bubbles can be visually seen in the leaking product

【Usage】Pull the watch lever as far as possible.Loosen two screws and remove the lid.Pull water into it until reaching the designated red line of the bucket.Hang your watch on the pole.Fix the lid and tighten the screws

【Air pressure】Shake the pressure lever to achieve 3 air pressure (the official standard of Swiss watch industry), and wait for three minutes to let air enter the whole watch. Press down the pole, let the watch immersed in water, press down the exhaust button, let the air out

【Easy for you to operate】When the pressure drops, observe whether there are bubbles from the watch, if there are bubbles, then the watch sealing is not good, quickly pull the pole and take out the watch. No bubble appears, the watch sealing is very good