Seestern S406 Aventurine Stone Automatic Man Diver Watch 42 mm V4 NH35A WR200 Version: V4 Case Material: All 316L Stainless steel, mixed finishings (brushing, polish, sandblasting) Case Diameter: 42mm excluding the crown Bezel: Unidirectional rotatable bezel, bezel insert (360 degrees, sandblasted and brushed finishing), lume pip Lug to Lug: 46 mm Height: ca. 13 mm Lug width: 20 mm Weight: ca. 172 g (steel strap) Movement: NH35A Automatic movement with lumed date wheel Strap: Stainless steel BOR, milled buckle with 4 micro adjustments, tappering from 20 to 18 mm Crown: Screw down crown (signed) Crystal: Flat sapphire , inner AR coating Dial: Aventurine Case back: Screw down with 3D art work Lume: Japan Lume glowing blue Water-resistance: 200m/660ft Condition: New CT SKU: 590300100401