Latest News & Discounts

  • Japanese Wooden Weapons Craftsmanship, the Beginning of the End | In addition to the structural crisis affecting the industry, in 2019, the closure of one of the largest Japanese workshops, Horinouchi, then, in 2020, the covid crisis have for consequences a drastic increase in prices and production times, and mid-term, a probable disappearance of the manufacture of wooden weapons in Japan. To learn more, you can read our article detailing the situation and the measures taken to help this industry.

Payment Methods

How to pay on offers only one payment methods: online payment by credit card.

Although the shop's currency can be set depending on your location, all our prices are determined in Japanese YEN and your shopping cart will automatically switch to YEN at checkout. Conversions between your currency and JPY are fully transparent when making payments by credit card. For the payment, you have nothing to do but to enter your billing address and credit card information.

Credit card payment via Stripe (main payment method)

Payment via Stripe logos
  • The fastest way to pay on SeidoShop: Nothing more is needed than entering your credit card information at checkout.
  • Accepted cards: Visa, MasterCards and American Express (some cards may not be accepted from certain countries).
    Stripe does not accept disposable/one-time-use/Ecards.
  • Apple Pay: on compatible devices, "Apple Pay" express checkout will be displayed at the first checkout step.
  • Payment currency: Japanese YEN (conversion is automatically made by your bank).
  • Debit on your account: immediate (can take a few days depending on your account details)
  • Fraud protection: yes, with the highest standards of the industry.
  • Security level: PCI level 1, currently no higher level of security available.
  • Credit card information storage: Nowhere. The information is passed to your bank and as soon as the bank has confirmed or not the authorization, the information is deleted. We only keep the 4 last digits of the card number.

Payment refusal ? It is for your own safety

Prepaid credit card refused

The payment processor will check the following elements when processing a payment and come up with a "potential risk of fraud" ratio. If this number is too high, your payment will be blocked. Here are a few key points that might prevent you from validating your payment and some solutions.

  • Verification: The transaction history of the card holder which includes data shared with other financial institutions.
    Solution: If you have a complicated history with your bank, you can try a card from another bank, or borrow a card from a friend. That is the only solution.
  • Verification: Flow deviation, which means that Payment processors monitors your browser activity during the payment process. Opening another website in a new tab during the payment process may be interpreted as a risk by the Payment processors fraud prevention algorithm.
    Solution: Finish the payment process at once and without consulting another website.
  • Verification: Payment processors verifiy where you physically are, where the store is you are buying from as well as the delivery address.
    Solution: make sure your billing address is the same as used for your credit card registration. Try to use a shipping address in the same country as the billing address (if you absolutely need to be delivered in another country, we can modify your shipping address afterwards).
  • Verification: Payment processors verify the potential risk of your internet connection (softwares used to retain/hide data or make your connection anonymous are suspicious).
    Solution: deactivate all softwares that may prevent your localization, especially browser extensions/apps (you can keep your firewall on). If you are using a public network (open Wi-Fi, work, school),please try again from home (it will be far more secure for you anyway).
  • Verification: Payment processors need to verify the identity of the card's bearer.
    Solution: contrary to what is announced by many banks, this is not possible with some E-Cards/disposable cards. Payments by E-Card will thus automatically be rejected so the only solution is to use another card.

You still can not process the payment ? First, please check with your bank if you have all the authorizations needed to place a payment online in a foreign country.
If so, please contact us. We will try to find a solution together.

What about credit card payment security ?

Our checkout page is fully secured with the latest technology provided by Shopify, world leader of online shopping cart solution with an excellent reputation when it comes to security. If you are on a secured connection on your end, the information you exchange is hidden from third parties. Stripe and Shopify use many kinds of security features that you would expect from any world scale financial institution and as far as we know, none of they ever experienced any credit card information leak.
However, it happens to have your data stolen from a risky behavior on your end, so here are a few tips to avoid any trouble with your card, at least on our website.

Payment Security
  • Never place any order from a public connection (i.e. public Wi-Fi, internet cafe, etc.)
  • Never click on any link you may find in emails (except from the receipt you receive right after your payment), or if you do so, do not enter any password/sensitive information on the landing website. Almost all hackers try to make you type your personal information on their own "fake/imitation" website. It is called "fishing".
  • Last but not least: Never leave your credit card unwatched. The very large majority of credit card frauds happen due to information stolen on the card itself (i.e. taking a picture of the card behind the counter...)

Pricing in Japanese YEN and other currencies

Currency Exchange logos

Our prices are set in Japanese YEN to insure a better price.
Indeed, Seido is based in Japan, and therefore, we receive final payments in YEN. Billing your orders in EUR would require us to take a "safety margin" to cover changes in exchange rates, hence making you pay more. By charging directly in YEN, you ALWAYS pay the best available change rate at the time of payment, and we do not need to apply an additional margin.

All the amounts shown on our website in a currency other than the Japanese Yen (JPY) are there for your comfort of navigation and are subject to fluctuations of the exchange rate, therefore the amounts may differ from the amount actually paid (the difference in the exchange rate, and exchange fees charged by your bank). The final payment on our website will always be displayed in JPY, regardless of the currency selected for display.

Conversions between your currency and JPY are automatic and fully transparent when making payments by credit card. You can view prices in JPY, EUR, or in USD, CAD, and GBP, at your convenience. All the prices displayed on the site, including descriptions, are transcribed in your currency. The exchange rate is updated twice a day from a dedicated website: We add a 5% conversion rate to the official rate so most of the time, the final amount charged on your credit card will be slightly lower than the one displayed on the website.

Other payment methods


As of October 2020, Seido has decided to no longer work with PayPal until further notice.
This decision is motivated by 4 points:
- PayPal's decision to no longer reimburse the 4% payment fee charged to us, whether in the event of a full or partial refund, or in the case of a cancellation of payment for risk of fraud. In addition, this decision came in the midst of the covid19 crisis, at the exact moment international transport was paralyzed, forcing many shops to cancel a significant number of orders (conversely, most of the other platforms have offered support to small businesses).
- PayPal's decision to remove large account "managers", then to remove specific merchant support, depriving us of any possibility of contacting a human being specializing in commercial matters.
- The fact that PayPal was banned by 2 major Japanese banks (including one of Seido's banks) in September 2020.
- PayPal's terms of sale allow them to keep control over all the money received for 6 months without any form of control over their decision making.

Payments by bank transfer:

International bank transfers to Japan are a bit complicated: Our bank, alike all Japanese banks, will charge 4,200 YEN for receiving an international transfer, add currency exchange fees and use a terrible exchange rate for incoming payments set in another currency than Japanese Yen.
This method should therefore be requested in advance by email and the minimum order amount for bank transfers is 100,000 JPY.
As we also need to justify the reasons of the transfer to our bank (measures against international fraud), we will refuse all transfers that have not been pre-approved by email.

Other options: e.g. cash payment:

Payment in cash, sent by ordinary mail or hand delivered by an acquaintance living in Japan is also possible.
Local bank transfers (Japan > Japan) can not be accepted for international orders (shipped outside of Japan).


Payments by check, Western Union, or any other methods are not accepted.
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