Perman Men's Analog Quartz Black PU Leather Watch Imported Band Material: PU leather. Case Material: Alloy. Size: Case: 40mm*6mm, Band: 240mm*20mm. (1mm=0.039") Dial Window Material: Glass. Dial Material: Stainless Steel. Movement: Quartz. Dial Display: Analog. Waterproof: No. Style: Fashion & Casual. Occasions for gifts:Advertising and promotion, business gifts, holiday, housewarming, birthday, travel.