Fendior Waterproof Ultra Thin Mens Black Leather Watch with Slim Dial Case diameter: 40mm; Watchband: 20mm;Water Resistance:3ATM Dial Window Material:Mineral,Shookproof & Scratchproof The Length of Watch Band,First Hole to Last one.Which Could Available for 6.88~8.86 Inches Durable Genuine Leather Band ,with Date Window,Comfortable for Wearing, Package Content:Well packaged in a stylish and retro watch box,and provide one month unconditional refund, 2 years quality warranty !