Hi,I have a Yamata sewing machine, I don't know the model number, the only number I found underneath is # 0703521, hope this might help.  I need to replace the 2 rubber belts (it's worn-out already) one is 34 cm in diameter and the otherone is 32 cm dia. and both is half cm in width. I need to know where I can buy those kind of belts.  Any information would be greatly appreciated.  Thank you.

Sewing Machines - Yamata - FY700 Mechanical Sewing Machine