fashion digital sport silicone wrist watch/band watch 1) size: 17,18,19,20cm 2) custom logo,size,color 3) CE & Rohs reports Description of custom logo silicone sport wrist watch: Size: 17cm,18cm,.19cm,20cm. Weight: 10-13grams; Material: 100% silicone strap, soft, comfortable, eco-friendly and non toxic to body; Movement: Japanese Movement; Waterproof: Ordinary waterproof; Function: Time Display, ...