Pretty sure it's a resistor, though I can't make heads or tails of that picture. Take pictures with more light!! That's why it's grainy as hell. But R68 most likely means 0.68 ohm (a standard value), and if you didn't subtract the resistance of the test leads, it could easily measure 0.8. I would be tempted to guess J5w is "5 watt", but it doesn't look big enough, so perhaps that's a model number and the "-1" at the end is "1 watt".