Multi-piece titanium case Case size: 44 mm, 1.732 inches Sapphire glass, domed on both sides, double-sided anti-reflective coating Case back: Titanium, screwed, see-through sapphire glass Water Resistance: 10 bar / 10 ATM / 100 M Movement: Hand winding 10-day power reserve, date developed by Oris Functions: Centre hands for hours and minutes, subsidiary second at 7:30 h, non-linear power reserve indication at 3 h, fine timing device and stop-second Power-Reserve: 240 hrs Vibrations: 21'600 A/h, 3 Hz Jewels: 40 Skeleton dial Indices and hands Superluminova BG W9 Multi-piece Titanium metal bracelet, folding clasp The Oris Big Crown ProPilot X Calibre 115 is powered by a skeletonised, in-house developed calibre with a 10-day power reserve and an Oris-patented non-linear power reserve indicator that shows the power remaining with greater accuracy as the time to rewind the watch approaches. The watch comes with a special luxury wooden presentation box and an official manual