BINGER-They are very inexpensive for the quality and keep perfect time! What You Get: 1 x BINGER Watch 1 x Gift Box 30 days money back guarantee Friendly Customer Service:) Adjustment Method: Step 1: Pull the crown all the way out to set the time Step 2: Pull the crown halfway out to set the day & date Please Note: watch itself will adjust the day/date at this time zone (watch's hour hand at 10pm-3am for quartz movement; 9pm-5am for automatic watch), so please adjust the day/date when hour hand is out of the time zone, otherwise day/date may not be setting correctly and movement may be possibly damaged. You can pull the crown all the way out to adjust the time to check out whether it is daytime or night, (Reference point is the change of the day or date window). If it is night, please adjust the time to avoid the "time zone". Then you can adjust the day or date by the way of pulling the crown half way out. Watches are often classified by watch manufacturers by their degree of water resistance which, due to the absence of official classification standards, roughly translates to the following (1 metre ≈ 3.29 feet). Water resistance rating/Suitability/Remarks Water Resistant 3 atm or 30 m/Suitable for everyday use. Splash/rain resistant. Not suitable for showering, bathing, swimming, snorkelling, water related work and fishing./Not suitable for diving. Water Resistant 5 atm or 50 m/Suitable for swimming, white water rafting, non-snorkeling water related work, and fishing./Not suitable for diving. Water Resistant 10 atm or 100 m/Suitable for recreational surfing, swimming, snorkeling, sailing and water sports./Not suitable for diving. Manufacturers water resistance classifications are interpretations and are not part of any ISO standard definition.