Gosasa Men's Tritium luminous Watch Rotatable Bezel Navy SEAL Stainless Steel Case Men's Military Quartz Watche Case Diameter:4.4cm(1.73in); Band Width:2.4cm(0.94in); Case Thickness:1.1(0.43in); Band Length: 25cm(9.8in); Maximum circumference:23CM(9in); minimum circumference: 17CM(6.6in); Tritium self-luminous constant glow for up 25 years,without any power Classic styles for men and women, (Navy Seal),Rotating bezel Synthetic-sapphire glass and 316L Stainless Steel case,Quartz movement from Japan with days function 30M WaterproofSwimming) Customer Service 30 days money back guarantee for any reason. 12 Month warranty for quality related issues; 24 months. maintenance for quality issues. You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it! Covers broken watchband, movement failures, cracked crystal, bezel damage and more. Includes a 1-time refurbishment. No deductibles or hidden fees. Free shipping on all repairs. Fully transferable. Easy claims process online or by phone 24/7. If we can't fix it, we will send you an Amazon e-Card for full replacement value. Coverage begins date of purchase and is inclusive of the manufacturer's warranty. Plan is fully refunded if canceled within 30 days. Plan contract will be emailed from Asurion within 48 hours of purchase. This will not ship with your product.