Watch Specification: Model: SN020- Upgraded version Movement: YN55 [Automatic mechanical movement] Case: Material - 316L Stainless Steel Glass: Sapphire Crystal Glass, Swiss AR Coating Bezel: Stainless Steel Polishing Bezel Dial Color: matte Black and sunburst blue dial. Note: matte black may looks like dark grey black color. It is not production issue. Dial Hands: Curved Carving Craft hands, Luminous Coating Luminous: Vintage dial: Retro Luminous Effect SLN C3 Green Light, Hands and Markers Sub Dial: BGW9-blue dial. Crown: Screw-down Crown,With 3D “S” Logo Case Back: Screw-down Case Back, Brushed Process Strap: 316L Stainless Steel Oyster Bracelet Clasp: Clasp: New Folding Clasp With Safety, With 3D Hexagonal Logo,Small Size Clasp, More Suitable For Watches Resistant: 10Bar=100 meters Watch Dimension: Case diameter:39 mm (without crown) Case length: 47.5mm( lug to lug) Case thickness: 12.5mm Lug width 20mm Weight: about 138g Our Service Warranty: 3 years Returns policy: Please check the website“Return / Exchange / Warranty Policy” Style: automatic watch, dive watch, luxury watch Package: watch, box, warranty card