Oris Classic Date Men’s Watch # 73375944064MB. Black guilloche round dial with applied Arabic numerals and luminous hands. Stainless steel polished case with see-through crystal skeleton case back. Stainless steel metal bracelet with double locking clasp. Polished steel bezel. Scratch resistant sapphire crystal. Date calendar. Automatic self-winding mechanical movement (caliber 733 based SW 200). Water resistant up to 50m. Approximate case size: 42mm diameter (thickness 10mm). Model Number: 733 7594 40 64 MB 733-7594-40-64-MB.