Result description 100% brand new, high quality. Shell thickness: 12.5mm Diameter: 42mm Result bandwidth: 20mm Please note: 1. All dimensions are measured manually and may be biased. Please refer to the actual product. 2. Due to the influence of shooting light, the color difference between the computer monitor and the eyes may be deviated. Please refer to the actual product. 3. Do not wear this watch while diving. Also avoid using it at extremely hot or cold temperatures. It is strongly recommended to clean the strap with a soft cloth on a regular base. Too much contact with water will shorten the life of the watch. Special note: Fully automatic mechanical watch, relying on arm movement and automatic winding, so you must wear more than 8 hours a day to ensure timely and accurate. Some automatic mechanical watches on the chain can also be connected manually, replenishing energy by rotating 25 turns clockwise without pulling the button. Warning: Observe the pointer until 8pm. At 4 am the next day, please do not adjust the calendar slowly, press the speed dial button and press to quickly adjust. Otherwise, the calibration will be invalid and will result in a speed dial button and the damage will be destroyed.