silver/yellow gold pocket watch hollow out happy birthday cake design men women handwinding mechanical clock pendant chain gift, Slivery;golden

mechanical pocket watch:no batteries required. just turn the rotation on the button and turn 15-20 times. please wind the pocket watch and keep it away from the magnet before use so that it does not sworking. time setting:the watch is easy to use, press down the crown, the front plate will be opened; pull out the crown and turn the crown clockwise until reaching the exact time, then press the crown back to its original position, time setting finish. sturdy material:our pocket watches are made of high-quality alloy, adopting upgraded thickening die-casting and polishing technology, strong and durable, hard to deform and rust for long-term use..syi