For Those Searching for a Truly Special Place
“Want to spend uninterrupted time together, without worrying about anyone around you?”
That wish can now come true in Sangenjaya, Tokyo.
After opening our Flagship Store in 2025, we are excited to introduce a long-awaited Fully Private Workshop Plan starting February 2026 at our annex studio, MITUBACI TOKYO 407.
From now on, groups of four or more can exclusively reserve and enjoy this inspiring creative space—entirely to themselves!
What Kind of Space Is MITUBACI TOKYO 407?
Room 407 at MITUBACI TOKYO preserves the stylish charm of a traditional Japanese metalworking atelier while offering a calm interior filled with soft, natural light.
Its greatest appeal lies in the uniquely creative yet peaceful atmosphere that only a true artisan studio can provide.
- Outstanding Privacy:
Located in a renovated 50-year-old building in the iconic Sankaku Chitai area of Sangenjaya, this hidden studio space feels like a true urban retreat. - Thoughtfully Designed Interior:
The atelier features well-loved vintage tools used by skilled artisans, creating an authentic and inspiring workshop environment rich in craftsmanship heritage. - Convenient Access:
Just a 1-minute walk from Sangenjaya Station, making it easily accessible while still maintaining its private, hideaway ambiance.
Create Unforgettable Memories in a Hidden Atelier in Sangenjaya
From meaningful family gatherings to intimate meetups with close friends, our private workshop space is designed for truly special moments.
With a group of four, the atelier becomes your very own “secret studio” in Sangenjaya—an exclusive space where you can relax, create, and connect.
Celebrate Friendships with Matching Silver Rings
Why not craft matching silver rings with your closest friends as a graduation keepsake or friendship jewelry?
Our private group plan, launched in February 2026 to celebrate the start of graduation season, allows you to enjoy a fully reserved workshop experience. Share stories from your student days, laugh about old memories, and create at your own pace in a comfortable, private setting.
As you engrave your rings and reminisce—“Remember when that happened?”—you’ll create more than jewelry. You’ll create a lifelong treasure. Even when life takes you in different directions, your handcrafted silver ring will always remind you of the bond you share.
Perfect for:
・Graduation commemorative jewelry
・Matching friendship jewelry
・Bachelor/bachelorette parties
Celebrating Life Milestones Across Three Generations — A Special Tribute to Grandparents
Honor meaningful milestones such as a 60th birthday (Kanreki) or 70th birthday (Koki) together as a family. Our private Room 407 is exclusively reserved for your group, making it a comfortable and welcoming space even for families with young children. Whether little ones get emotional or excited and move around, there’s no need to worry about disturbing others.
Creating handcrafted silver jewelry together with grandchildren becomes a truly priceless gift for grandparents. Relax in a calm, intimate atelier setting, and enjoy precious, uninterrupted family time filled with warmth and connection.
A Luxurious Fan Experience — Turn Your Love Into Something You Can Wear
Want to wear your favorite idol or character’s signature color close to your heart?
At MITUBACI TOKYO, you can bring that wish to life. Choose from a handcrafted ring, pendant, or bangle, and finish your piece by setting a birthstone in your favorite idol or character's signature color. Create a one-of-a-kind jewelry piece inspired by the one you love most.
In our fully private atelier space, you’re free to display your acrylic stands, plushies, or fan goods for photos, and share your passion without hesitation. Transform the space into your very own sacred fan sanctuary—and craft a truly unique “concept jewelry” piece that exists nowhere else in the world.
Creative Team-Building Workshops to Strengthen Workplace Bonds
Step outside the usual conference room and experience hands-on team building in a professional artisan atelier.
MITUBACI’s metalworking workshops are ideal for corporate training programs, team retreats, and department gatherings. Sitting around the same table, focusing together as you hammer and polish metal, creates a shared sense of achievement that’s rarely found in today’s digital-driven work environment.
Engrave your finished ring or bangle with a team motto, shared value, or company goal to make the experience even more meaningful. Designed for small groups of 4 to 8 participants, this creative workshop encourages open communication, fresh inspiration, and stronger team unity.
Tell Us How You’d Like to Use “407” — Your Private Atelier Experience
Our fully private workshop plan for groups of four or more launched in February 2026, inspired by our commitment to crafting jewelry that truly reflects each individual. With this exclusive format, we can offer a deeper, more personalized creative experience in our Tokyo atelier.
There is something magical about an atelier.
The sound of hammering metal, the texture of well-worn tools, and the presence of skilled artisans at work create an atmosphere where gratitude flows more honestly, meaningful conversations unfold naturally, and new ideas spark unexpectedly.
“Is it okay if we use the space for this kind of gathering?”
“Can you help us plan a surprise celebration?”
“We want to decorate the space in our favorite colors!”
We welcome your ideas, requests, and even your boldest wishes. As a professional atelier with experienced craftsmen on-site, we can support you not only technically, but also in creating a customized, memorable space.
We look forward to welcoming you to our hidden atelier in Sangenjaya, where your one-of-a-kind story begins.
How to Make a Reservation
If you would like to book a private workshop in Room 407, please contact us at contact@mitubaci.co.jp
Our team will be happy to assist you with availability, group details, and any special requests to help you plan your exclusive private workshop experience.
