Luminox XS.3252.BO.L Excellent condition. Super rugged, 'bomb proof' watch with substantial wrist presence. As far as I know there is no special finish on the steel other than the satin black that is on it, but it's near mint even after sporadic use. Sized for my 7.5" wrist with two spare links added. Comes with Luminox case and booklet but no warranty card. Functions as a swiss made quartz should. This is a good sized watch and not for the faint of wrist. Tritium Dial and Hands plenty bright for that late night op. Luminox specs below: Band Material Black Ion-Plated 316L Steel Band Width 24 mm Clasp Type Deployment Bezel Function Uni-directional Rotating Bezel Material Black Ion-Plated 316L Steel Case Back Screw-In and Solid Case Diameter 45 mm Case Material Black Ion-Plated 316L Steel Case Thickness 14 mm Crown Screw Down Crystal Anti-reflective Scratch-resistant Sapphire $200 shipped CONUS