About Tamiya

What kind of brand is it?

We are a brand that creates products to quietly accompany daily life, rooted in Japanese aesthetics such as "Ma" (negative space) and "Yohaku" (empty space).

Focusing on shirts and jewelry, we value the expression and presence of materials, and the "yohaku" that is created when they are worn.

Rather than being swayed by trends, we aim to create items that become an integral part of one's daily life over time.

What do you value?

It's about having"space" and cherishing "things" for a long time.

Instead of ostentatious decorations, we value the natural expression of the material itself and the beauty of the person that is brought out even further by wearing it.

We believe in creating items that don't just feel good the moment you get them, but change into an expression unique to the wearer as they are used and time passes, quietly remaining in their daily lives. We value creating items that quietly remain in one's daily life.

That's why our shirts become more comfortable the more you wear them, and our jewelry makes you want to keep it for many years to come. We offer such products.

What is your approach to manufacturing?

We aim to create items that, through long-term wear, accumulate the wearer's own personal time.

Time passes whether we do anything or not. We simply want our creations to be able to stay close to a person's life. This is the kind of brand and craftsmanship we aspire to.

Rather than adding too much shape or ornamentation, we value making the most of the material's character and empty space, ensuring that the item naturally blends with the wearer when put on.

We believe that true craftsmanship encompasses not just the moment an item is completed, but also the changes and textures that emerge through continued use.

How is design created?

I draw inspiration from everyday landscapes, nature, light and shadow, and the spaces that emerge between objects.

I express what can be given form through various experiences and observations. Instead of directly replicating perceived shapes and textures, I incorporate TAMIYA's unique interpretation, striving to strip away all unnecessary elements.

I value designs that quietly assert their presence, completing themselves when worn.

Why do you only make to order?

We value creating only what is needed, in the necessary quantities, and with care.

To minimize excess inventory and waste, we carefully craft each product, aiming to deliver items that can be cherished for a long time. For this reason, we employ a build-to-order system.

While it takes time for your order to be delivered, we hope you will enjoy the entire experience of acquiring an item, including the anticipation of its completion.

Who do you want to wear this?

We want our accessories to be worn by people who value their own senses and values, regardless of age, gender, or style.

We hope you choose our products not just to stand out, but to wear them for yourself and cherish them in your daily life for a long time. (Of course, choosing for others is also wonderful.)

We hope TAMIYA products become a quiet companion in the daily lives of each person who wears them.

Why shirts and jewelry?

At TAMIYA, we view shirts and jewelry as items that are closest to daily life and can be worn for a long time.

A shirt envelops the body, and jewelry nestles against it.

Though distinct in their nature, both quietly remain a part of the wearer's daily life.

Rather than fleeting trends or temporary adornments, we aspire to create items that become a part of the individual over time.

It is with this philosophy that TAMIYA focuses on crafting shirts and jewelry.

What is the inspiration behind the brand?

It is influenced by traditional Japanese aesthetics such as ma (negative space), blank spaces, and shadows.

It is about finding beauty not in filling everything, but in intentionally left spaces and ambiguity.

While superimposing such sensibilities onto modern life, we value designs that are completed by the presence of the wearer.

Regarding the product

Is this made to order?

Yes, TAMIYA manufactures jewelry products and some new products by build-to-order and reservation.

As each item is manufactured individually after an order is placed, delivery may take some time.

For detailed delivery times for each product, please check the respective product page.

Where are your products made?

TAMIYA products are carefully crafted one by one in collaboration with reliable artisans and factories in Japan.

The production location and manufacturing process vary depending on the product.

Please refer to each product page for details.

Please tell me about the materials used.

Our jewelry primarily features SV925 (sterling silver) and natural stones.

For clothing items like shirts, we mainly use natural materials carefully selected within Japan.

The materials and specifications vary by product, so please refer to each product page for details.

Are there any differences in color between the product photos and the actual product?

Product photos are posted in colors as close to the actual product as possible, but due to lighting conditions at the time of shooting, and the settings and environment of the monitor or smartphone you are viewing on, the actual color may appear different.

We appreciate your understanding in advance.

How do I care for it?

About jewelry

How do I measure my ring size?

Click here to view.

About Ring Size Measurement

What should I do if I'm unsure about my ring size?

Ring sizing varies depending on the design, band width, and the finger on which it will be worn.

In addition to measuring your size at home, if you wish to confirm it more accurately, we recommend using a ring sizer at a nearby jewelry shop.

How to Measure Your Ring Size

If you are unsure about choosing a size, please feel free to contact us.

Official LINE

Is the sizing the same for wide rings?

Wide rings cover a larger surface area of the finger, so they may feel tighter than thin rings of the same size.

While the wearing comfort varies depending on the design and finger shape, you may want to consider going 1 to 2 sizes larger than your usual size.

If you are unsure about sizing, please feel free to contact us.

Official LINE

What kind of material is silver 925?

Silver 925 (SV925) is an alloy containing 92.5% silver.

Because pure silver is very soft, other metals are added to increase its strength, making it easier to wear as jewelry on a daily basis.

The texture that develops with use and the changes in appearance over time are unique charms of silver.

What should I do if my silver tarnishes?

Silver may tarnish and darken over time due to exposure to air, sweat, and sebum.

If tarnishing occurs, you can restore its original luster by gently polishing it with a silver-specific cleaning cloth.

Please note that products containing natural stones may require different cleaning methods, so handle them with care.

Ordering and Payment

What payment methods do you accept?

Click here to view

Payment Methods

Can I cancel or change my order after it's been placed?

We generally do not accept such requests.

I have not received an order confirmation email.

After completing your order, an order confirmation email will be automatically sent to the registered email address.

If you do not receive the email, please check your spam folder and ensure that there are no errors in the email address you registered.

If you still do not receive the email after checking, please contact us via the inquiry form.

Can I buy this as a gift?

Yes, you can purchase them as gifts.

Currently, products are delivered in standard packaging, and shopping bags are not included.

We plan to offer gift services, such as gift boxes, in the future.

We are working to ensure that you can choose TAMIYA as a gift for your loved ones.

About shipping

How long does it take for my order to arrive?

Jewelry items and some new products are made to order, so please allow approximately 6–8 weeks from order to shipment.

In-stock items will be shipped as soon as they are ready.

Delivery times vary depending on the product, so please check each product page for details.

How much is the shipping?

Free nationwide.

Can I change the delivery address?

As a general rule, we do not accept changes to the shipping address after an order has been placed.

However, changes may be possible if the shipping label has not yet been created. If you wish to make a change, please contact us as soon as possible.

Returns & Exchanges

Can I return or exchange this?

As a general rule, we do not accept returns or exchanges due to customer convenience.

If a product is defective or damaged, or if you receive a product different from your order, we will respond after confirming the condition. Therefore, please contact us as soon as possible after the product arrives.

Before placing an order, please thoroughly confirm the size, material, and product details.

Can I exchange it if the size doesn't fit?

As a general rule, we do not accept returns or exchanges due to size differences caused by customer reasons. However, if the size does not fit, please feel free to consult with us. Therefore, for items requiring size selection, such as rings, please thoroughly confirm your size before ordering.

If you are unsure about sizing, please feel free to contact us before placing your order.

What should I do if the product is defective?

If the product you received is defective or damaged, we will exchange or repair it after confirming the condition of the product.

Please contact us as soon as possible after receiving the product, attaching photos that show the condition of the product.