R-timer Roman Copper Wood Ring Hollow Mechanical Pocket Watch Retro Fob Steampunk Open Face Design for Men and Women Easy to set, rotate, twist the top button on the spin, tightening a walk for 24 hours (not too tight, avoid damaging the movement,) Pulling out the button on the watch a little to adjust time, and no need to use battery Imported Precision Japan Quartz Movement Antique chain length 14",pocket watch case diameter 1 4/5" Fashion wood pocket watch fob comes with new gift box