Time mode: 12 hours or 24 hours AM/PM, Novel and chic, retro style, ultra-luxury high-end design. Easy to set by just turning the knob Can be used as gifts and home decoration Turn the knob counterclockwise to adjust the time<br><br>Please adjust 1 minute earlier than the accurate time (for example, the current time is 10:10, you should adjust the time to 10:11). The size and weight of different styles may vary slightly Power Supply: 1 verse D battery(without battery) Colour:As Shown Material:Metal+Electronic<br><br>Package Contents: 1x clock<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.