DIMENSIONS: case diameter 46 mm; height 14 mm; weight 130 g. MATERIALS: 316L stainless steel with helium release valve; top glass sapphire crystal with anti-reflective coating; caseback screwed; crown screwed. BEZEL: 120-click undirectional with arabic numeral and luminous insert. DIAL: applied indexes and luminous insert, 3 hands. STRAP: professional rubber with standard buckle; width 22 mm (lug to lug). MOVEMENT: Seiko SII Cal. NH35 (In-House Elaborated) - Japan Movt. self-winding; frequency 21,600 VPH (3.0 hz); power reserve +40 hours; jewels 24. WATER RESISTANT: 100 ATM (1.000 meters).