Japanese Brand.
This advert is only for sale with a wallet, there is another advert with a chain.
Wallet with silver details RA-Studio.
length 18.7 cm, width 9.7 cm. 
In excellent condition, no scuffs or scratches, only at the corners there are cracks in the paint from bending.
 
Also in my ads there is a set of this wallet with silver chain. It is also possible to buy only the chain.