[Product Information] Brand: DANIEL MULLER Materials: glass [Product Description] ・Target: Men ・Set contents: Main unit, box, instruction manual, warranty card included ・Reinforced waterproofing for daily life: 10BAR ・About the screw-in crown The structure allows the crown to be locked with a screw to improve waterproofness. [How to unlock] Turn the crown counterclockwise (downward) to loosen the screw and allow the crown to be operated. [How to lock] Gently press the crown against the watch body and turn it clockwise (upwards) to tighten. explanation Brand Description: DANIEL MULLER is popular for its designs with ``free values'' that are not bound by boring shapes. With COOL & STYLISH as the keywords, we sprinkled a casual essence with a unique design and high quality texture. As an advanced fashion brand, it has gained satisfaction and widespread support from people of all cool generations, from young people full of individuality to adults who never forget their sense of fun. This time we have an eye-catching 100M waterproof diver's watch with a simple design and tough body. [Important Note - For Overseas Customers] Thank you for purchasing this product. Please read the following important notes carefully before using this product overseas. 1. Legislation and safety standards This product complies with Japanese safety standards. Please check compatibility with local regulations and safety standards before use in your country. Certain product categories (electronics, cosmetics, food, etc.) may require certification from the importing country. 2.About electrical products This product complies with Japanese power specifications (100V, 50/60Hz). If your country has different power specifications, you will need an appropriate transformer or conversion plug. Using an inappropriate power source may cause malfunction or accident. 3.Language and manual Product instructions and displays may only be in Japanese. The English version of the manual can be downloaded from our website. 4. Warranty and after-sales service International warranty coverage is limited. Please check the warranty for details. After-sales service and repair support overseas may be limited.