Multi-piece stainless steel case Case size: 43.5 mm, 1.713 inches Sapphire glass, domed on both sides, anti-reflective coating inside Case back: Stainless steel, screwed, see-through mineral glass Water Resistance: 30 bar / 30 ATM / 300 M Movement: Automatic winding date developed by Oris, Oris 733, base SW 200-1 Functions: Centre hands for hours, minutes and seconds, date window, instantaneous date, date corrector, fine timing device and stop-second Power-Reserve: 38 hrs Vibrations: 28’800 A/h, 4 Hz Jewels: 26 Indices and hands Superluminova BG W9 Black rubber strap, stainless steel security folding clasp with extension Matt dial and rotating bezel with matt ceramic insert