Latest rakuten newsletter has the following info:
Want something from Japan?
Rakuten International Shipping Services offer cheap delivery fee with a wide variety of Japanese products to meet demands from customers living outside Japan.
Currently, about four hundred shops have participated and 180,000 items are registered for international shipping.
An English top page along with an English shopping guide has been created for easy purchase in English.
Please take a look at the newly created English page!
Rakuten International Shipping Items can be found via our service top page shown below or putting a key word of 'International Shipping' at the search engine in Rakuten.
Rakuten International Shipping Services Top Page in English
We hope you will enjoy shopping with us.
So far, they only accept American Express -- but will be adding more payment options soon.
Here is the English language link:
Got to get to work now.
edit-->The watch shops are nothing to get excited about so far. Don't forget to check feedback for the store if you are considering buying.