Description: Movement: NH70A Automatic movement Case Meterial: solid 316L stainless steel case. 20ATM Case diameter: 40mm without crown Case thickness: 13.5mm. Dial: Transparent Hollow Dial Strap: 20mm width oyster strap. Clasp type: >oyster strap:Slide Glide Lock Buckle. Glass: Sapphire Glass. Unidirectional Bezel Ring; Insert: ceramice bezel; Insert size:38mm x 30.6mm; The case of this watch fit dial size:28mm-29.2mm; 20ATM waterproof Strap can be changed into: polished center link oyster ,rubber strap,etc,please contact us. Shipping: 1. We will post your item within 2 days after the payment is completed. 2. Transport time depend on different shipping methods and the distance. 3.Please Note: Delivery time depends on many factors ,if you dont receive you item more than 1 month, please contact us, we will check and solve the problem for you. Feed back: Your feedback is very important to our businesss development, we sincerely hope you can take 1 minute to leave positive feedback for us if you are satisfied with our product and service. If you have any question ,please feel free to contact us first before you leave feedback ,we will reply you in 24 hours and try our best to solve for you !Thank you! Return: We can give you a full refund for items returned within 15 days of you receiving them if your items are returned in their original condition. Buyers need pay for the return shipping fee. Once receive the return item, we will refund you immediately. Thank you !