Main Features: - Present by JB group, Happy Birthday series. - High quality stainless-steel case and chain. Specification (approximate)(1 cm=10 mm=0.394 inch) - Watch Case Diameter: 47mm. - Watch Case Thickness: 13mm. - Watch Case Material: stainless-steel. - Watch Chain Length: 350mm (hook included). -Watch Chain Material: stainless-steel. Package Includes: - 1 x Pocket Watch - 1 x Gift Box - 1 x Instructions Manual For detail instructions of the watch, please access our Instructions Manual. The Instructions Manual in your package. If any questions, please don't hesitate to contact us. Reminder of Mechanical Watch: 1. Please keep the watch away from magnet to avoid making the watch stop working. 2. Please wind up the watch before every usage. How to use Hand-Wound Mechanical Watches? A. hand-wound mechanical watch is powered by winding the crown to wind up the mainspring within the movement. Therefore, it is necessary to wind them up regularly using the crown, usually once a day. Swing the watch 15-20 times for the first use.B. Winding method: clockwise twisting the time adjust button without pull the button out. Be careful not to overwind the watch. You should stop winding when you feel resistance. This resistance indicates that the spring has reached its maximum tension. Overwinding will ultimately break.
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