So-called LED watches,usually in the standby state (black), you must click on the button in order to see time, after bright 3 seconds recover standby! * The pocket watch is not just a prop replica it is a working pocket watch, with Roman number index. * Material: stainless steel case + silicone strap * Specifications: 3.5 cm dial * 3 cm ，strap length：24.5 cm (including dial) Packing: Packed