Case Shape:Round Case Thickness:13mm Band Width:20mm Band Material Type:Leather Boxes & Cases Material:Paper Model Number:D819.622 Dial Window Material Type:Sapphire Crystal Feature:Complete Calendar,Week Display Dial Diameter:42mm Water Resistance Depth:5Bar Clasp Type:Buckle Band Length:21cm Case Material:Stainless Steel Style:Business Movement:Automatic Self-Wind Brand Name:Sea-Gull Origin:Mainland China Item Type:Mechanical Wristwatches Movement weight:84g Movement model:ST2502 Movement frequency:21600 Features:perspective window Country of origin:China Warranty time:Yes Support direct delivery:2year