Specification (1 cm=10 mm=0.394 inch) (approximate) Case diameter: 4.7cm approx. Case thickness: 1.8cm approx. (cover included) Case Material: Stainless Steel Chain Length: 36.6cm approx. (hook included) Chain Material: Stainless Steel Movement: Mechanical Hand-winding Movement Case Color: Black Dial Color: White Style: Antique Gender: Men & Women Weight: 80g. Approx. Package Includes: -1 x Watch -1 Free Chain -1 Gift Box 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 24-36 hours. . If you wear it more than 10 hours per day, extra winding up will not be necessary only for automatic.
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