Viking Sapphire 830 Sewing Machine Instruction Manual (Model Sapphire 830) - 48 Pages. Lost your sewing machine's manual? We've got you covered! This instruction manual is the ultimate guide to unlock the full potential of your Viking Sapphire 830. No more confusion or frustration—just clear, concise instructions right at your fingertips. What's inside? Everything you need to know from setting up to mastering your sewing machine and all its features.