Size: the pocket watch is approx. 4.6 cm/ 1.8 inches in diameter small size for easy carrying; And the chain is approx. 37 cm/ 14.57 inches in length enough to secure the pocket watch easily Way to open: the quartz pocket watch is simply designed; You can press the crown at the top of watch and the front plate will be opened Setting time: pull the crown away from the watch base and turn the crown clockwise until reaching the exact time Antique gift: the Roman numeral watch comes with a gift box and cleaning cloth functioning as a delicate gift for relatives friends teachers and more International products have separate terms are sold from abroad and may differ from local products including fit age ratings and language of product labeling or instructions.