Oris Artelier Pointer Date Men’s Watch # 64475454051MB. Silver round guilloche dial. Stainless steel case with see-through mineral crystal skeleton case back. Stainless steel metal bracelet with locking clasp. Polished steel bezel. Scratch-resistant sapphire crystal with anti-reflective treatment. Pointer date calendar. Small seconds sub dial. Automatic self-winding movement. Water resistant to 30m. Approximate case size: 42.5mm. Model Number: 644 7545 40 51 MB 644-7545-40-51-MB.