Item Type: Mechanical Wristwatches Movement: Automatic self wind Case Material: STAINLESS STEEL Band Material Type:STAINLESS STEEL Dial Window Material Type: Hardlex Clasp Type: Bracelet Clasp Wateproof Depth:3Bar(use to wash hand without hot/warm water,can't take shower, bath, swim etc ) Diameter: 44mm Thickness: 14mm Length of watch band: 24cm Band width: 20mm Note: Our watch is a fixed size and does not suitable for everyone's wrists, the customer needs to adjust the length of the strap (requires tools), we have the size of the watch, please browse before placing the order. Package included: 1 Watch. 1 Gift Box. 1 Manual Instructions. Reminder: 1. Please peel all films off before wearing. 2. Please keep the watch away from magnet to avoid making the watch stop working. 3. Please wind up the watch before every usage,fully winding up spring need to turn the crown 20~30 rounds to initialize power reserve. 4. Do not rotate the crown strongly 6. Do not adjust the time from 9:00 am to 3:00 am the next day.