TOOGOO(R) Cool Chrome Chain Pocket Watch (Silver) Elegant design with precise quartz movement. Removable chain with a clip at the end Polish pocket watch is the best gift for your family and friend. Daily water resistance (not for showering and swimming) Case Material: alloy. Chain Material: alloy Case diameter: 4.5cm approx Case thickness: 1.0cm approx (cover included) Chain Length: 80cm approx