Swiss Made ETA 7750 automatic chronograph movement, 25 jewels, 28,800 vibrations Flat sapphire crystal with anti-reflective treatment on both sides Case made of 316L stainless steel Bracelet made of solid 316L stainless steel Solid triple diving clasp with safety clasp Screwed display back Water resistance: 5 ATM / 165 feet Case diameter: 40.5 mm Case thickness: 14 mm Bracelet width: 20 mm Dial: Matt blue with luminous Arabic numerals (SLC1 material) Arabic numerals in accordance with the international ICAO standard Weight: 176.5 grams