The Camping pocket watch is a classic timepiece that's been around for hundreds of years. It's the perfect gift for any occasion, whether it's your wedding day or just to say thank you. The watch features a black chain measuring about 14 inches long.A clip at the end allows you to easily attach it to a pocket or belt loop. This mechanical watch has a built-in battery. Just pull out the knob to set the time. Press in and turn clockwise until it stops, then repeat in a counterclockwise motion until you reach your desired time setting. If you want to reset the time after winding, just push and turn the knob counterclockwise until it stops, and repeat.