1. PAGANI DESIGN This watch adopts Japanese NH35A automatic calibration (powered by arm activity; no battery; 41 hours power reserve, accurate travel time) - this analog watch has calendar functions: date, BGW grade 9 luminous hands, luminous numerals, luminous Color comes in original box. 2. COMFORTABLE AND DURABLE: The PAGANE DESIGN men's watch is made of stainless steel automatic, which not only ensures the comfort of the wrist, but also can easily match your clothes. Our automatic watches are perfect for those who are adventurous or want a stylish fit 3 Waterproof: The watch is water resistant to 10 bar. It can not only support daily hand washing, car washing, rain and other water contact sports, but also support long-term water sports such as snorkeling and swimming. Note that the watch does not work underwater. Regardless of water resistance, you should never put your watch in a hot bath, as water vapor is more likely to penetrate and damage the watch.