closed as off-topic by Tim, pro, Doktor Mayhem♦ Apr 1 '16 at 23:37
This question appears to be off-topic. The users who voted to close gave this specific reason:
- "Questions seeking recommendations for specific equipment are off-topic, because they are primarily opinion based. Instead, describe the required function and setting in which the equipment will be used, and ask what you should look for to achieve that." – Tim, pro, Doktor Mayhem
I think it's fake, the label is worrying, clumsily printed & doesn't match the shape of the printed oval to the shape of the actual sticker.
A picture of the headstock from the OP would help to check the logo & font used more closely, fakes tend to get the M wrong.
Note the centre of the M shouldn't reach the baseline.
Just to provide some pictorial comparison, this is the label, serial number (ringed) & headstock from a real [if not magnificent] Yamaha acoustic.
Another thing to worry about is that no Yamaha pure acoustic has a cutaway - only the 'electric' acoustics have that.
Yamaha seems to have only sold FG 720 S models. I can't find any FG 720 C models, even in their list of discontinued models. On the basis of this, I would argue it's a fake.