Specification (1 cm=10 mm=0.394 inch) (approximate) Case diameter: 4.4cm approx. Case thickness: 1.4cm approx. (cover included) Case Material: Stainless Steel Chain Length: 36.6cm approx. (hook included) Chain Material: Stainless Steel Movement: Mechanical Hand Wind Movement Color: Black Style: Fashion Gender: Unisex Weight: 78g. Approx. Open Face Package Includes: -1 x Watch -1 Free Chain How to use mechanical watch? A mechanical watch power by winding spring manually or self-winding (no need battery). 1. When you first wear it, please wind the watch by turning the button on the side of the watch, until it is full. 2. By taking the button out slightly, you can adjust the time, then push back the button. 3. If you leave it still for a long time, please swing it lightly for a few minutes and wind-up by several laps. At this time, it will work normally. 4. If still have any questions, please contact us first. Hints and Tips: . Fully winded, the power reserve of watch can reach 30-36 hours. . If you wear it more than 10 hours per day, extra winding up will not be necessary.
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