Brand: San Martin Model: SN020-G2 Movement: YN55 [Automatic mechanical movement] Is Support Custom Logo: Yes Case: Material - 316L Stainless Steel 39mm in diameter Lug to Lug 47.5mm Thickness 12.5mm Band width 20mm Glass: Top Hat Sapphire Crystal Glass, AR Coating Bezel: Stainless Steel Polishing Bezel Dial Color: Black/ Light Blue Dial, Sterile Dial,Upgraded Applied Hour Markers Hands: Classic Mercedes Hands, Luminous Coating Luminous: BGW-9 Blue Light, Hands and Markers Crown: Screw-down Crown, With 3D San Martin Hexagon Logo Case Back: Screw-down Case Back, Brushed Process Strap: 316L Stainless Steel Bracelet, Female Endlinks, 20mm*16mm Clasp: Folding Clasp With Safety, With 3D Hexagonal Logo,4 Micro Adjustment Holes Big Clasp Water Resistant: 10Bar=100 meters Weight: about 138g Warranty: 2 Year