NWT Stainless Steel Pocket Watch with Chain Analog Skeleton Watch Hand Wind Mechanical Watch with Clip and Stainless Steel Chain Stainless steel pocket watch featuring skeleton dual-sided dial, Roman numeral hour markers, and 12" link chain with belt clip Mechanical hand-wind movement with analog display Dual-sided protective Krysterna crystal dial window Mechanical Movement - the crown needs to be wound 25 -30 winds or until you feel resistance, every twenty four to thirty six hours. Round Dial window material type: Krysterna Crystal Display Type: Analog No Clasp Case material: Brass Case diameter: 48 millimeters Case Thickness: 13.5 millimeters Band Material: Brass Band size: men's-standard Band width: 6 millimeters Dial color: White Bezel material: Stainless Steel