It has evolved into a reliable item for mountain climbing, adventure, and every day life.Seiko Prospex Alpinist。
Introducing a new model that inherits the Alpinist DNA and has upgraded performance to match the Prospex.
Equipped with the automatic movement "Cal.6R55", it has a long power reserve of up to approximately 72 hours (3 days). The appeal is the sense of security that even if you take it off on the weekend, it won't stop until Monday morning.
A classic dial design that inherits the DNA of successive alpinists (SBDC091). Diamond shield processing prevents small scratches and maintains its beautiful appearance for a long time. The traditional "Alpinist" logo, which has continued since the first "Laurel Alpinist" in 1959, is placed at the 12 o'clock position, and the back cover is printed with a mark with a mountain range motif. This is a limited distribution model exclusively for core shops that highlights the unique worldview of alpinists.
Presence and practicality suitable for mountain adventures.
The classic black dial shines beautifully.
The dial proudly features the traditional Alpinist logo.
The camera back design has a mountain range motif.
■ Main features
- Core shop exclusive model:A special model limited to distribution.
- Alpinist DNA inheritance:The traditional Alpinist logo that has continued since the first generation in 1959 is placed.
- Equipped with Cal.6R55:Highly reliable 24 jewel mechanical movement.
- Approximately 72 hours drive:Long power reserve that continues to work for 3 days.
- With manual winding:Manual winding function allows you to wind it as needed.
- Diamond shield processing:Maintains a beautiful appearance with little scratches.
- 20 ATM waterproof:High waterproof performance for mountain climbing and outdoor activities.
- Screw lock crown:Prevents water and dust from entering.
- Adduction ring with simple compass:Direction can be confirmed.
- Back skeleton:You can appreciate the beautiful movement of the mechanical movement.
- Magnifite:The date is easy to see with the sapphire glass lens.
- Lumibrite:The hands and indexes are coated with luminescent paint, making them visible even in the dark.
- Second hand stop function:Accurate time setting is possible.
- Screw back:Back cover structure increases robustness.
- Magnetic resistance:Reduce the influence of magnetism in daily life.
- Made in Japan:High quality made in Japan.
■Specs
| brand | SEIKO |
|---|---|
| series | PROSPEX Alpinist |
| Product number | SBDC209 |
| caliber | 6R55 (automatic winding) |
| Drive method | Mechanical automatic winding (with manual winding) |
| precision | Daily difference +25 seconds to -15 seconds |
| Driving period | Lasts approximately 72 hours at maximum winding |
| Koku count | 24 stones |
| case | Stainless steel (diamond shield processing) |
| band | Stainless steel (C-ring type) |
| Nakadome | One-push three-fold method |
| glass | Sapphire glass with lens (inner anti-reflective coating) |
| Dial color | black |
| belt color | silver |
| case size | Approximately 46.4 x 39.5 x 12.7mm/Belt width 20mm |
| weight | Approximately 147g |
| belt around arm | Maximum about 20cm |
| waterproof | Reinforced waterproof for daily life (20 atm) |
| Other functions | Second hand stop function / Screw back / Internal rotation ring with simple compass / Back skeleton / Screw lock crown / Anti-magnetic / Lumibrite (hands and indexes) |
| accessories | Warranty card/dedicated box *As part of our efforts to address environmental issues, the instruction manual has been digitized. |
| Release date | November 2025 |
| price | *Please check each mall |
| Guarantee | Manufacturer 3 year warranty *Nanapure is currently running a 7-year warranty campaign. |
| Country of origin | Made in Japan |
■ History and tradition of alpinists
In 1959, Seiko created the Laurel Alpinist, which was developed for mountaineers. It was characterized by its reliability, allowing it to keep accurate time even in harsh mountain environments, and its highly legible dial design.
SBDC209 is a model that has evolved with modern technology while inheriting the DNA of this first generation alpinist. The traditional "Alpinist" logo is proudly placed at the 12 o'clock position, and the beautiful dial design has been inherited from successive models.
On the back cover, a mark with a mountain range symbolizing alpinists as a motif is printed. It highlights his passion for mountain adventure and his unique worldview as an alpinist.
■ Cal.6R55 - Reliable movement that runs for 3 days
At the heart of SBDC209 is a highly reliable mechanical movement.Cal.6R55Equipped with. Using a 24-jewel ruby bearing, it has a long power reserve of up to approximately 72 hours (3 days).
Even if you take it off on a Friday night, it won't stop until Monday morning. Its appeal is that it is highly practical and can be worn on your wrist as soon as you return from a weekend outdoors.
It also has a manual winding function, so you can wind it manually if necessary. The back skeleton allows you to admire the beautiful mechanical movement from the back cover.
The accuracy is +25 seconds to -15 seconds per day, which is a practical range for a mechanical watch. The second hand stop function allows accurate time setting.
■ クラシカルな文字盤デザイン
SBDC209 adopts a classic dial design that inherits the DNA of successive alpinists (SBDC091). Arabic numerals and wedge-shaped indexes provide both visibility and elegance.
At the 12 o'clock position is the traditional "Alpinist" logo that continues from the first "Laurel Alpinist" in 1959. This logo, shining proudly below the Seiko logo, speaks to the history and tradition of alpinists.
The date display uses a sapphire glass (magnify) with a lens. The curvature of the glass has been optimized so that the calendar numbers can be viewed accurately. The black and white date display creates a vintage feel.
Lumibrite (luminescent paint) is used for the hands and indexes, allowing you to check the time even in the dark. Ensures visibility during nighttime activities such as mountain climbing and camping.
■ Diamond Shield - Scratch resistant beauty
The case and bracelet are treated with Seiko's proprietary surface hardening technology, ``Diamond Shield.'' It prevents small scratches and abrasions that can easily occur with daily use, and maintains a beautiful shine for a long time.
The stainless steel triple bracelet is flexible and fits comfortably on your wrist, making it comfortable to wear. The C-ring structure provides both flexibility and durability.
The clasp uses a one-push type three-fold buckle, making it easy and secure to attach. The weight of approximately 147g gives it the presence of a full-fledged mechanical watch.
■ 20気圧防水と山岳機能
SBDC209は、20気圧防水を実現。 This is an authentic model developed for tough situations such as mountain climbing and trekking.
Screw-lock crown structure prevents water and dust from entering. Coupled with the screw back structure, it ensures high waterproofness and durability.
Equipped with an adduction ring with a simple direction meter, convenient for checking direction when climbing. Combined with the Lumibrite luminous hands, you can read accurate time and direction regardless of day or night.
It also has anti-magnetic properties, reducing the effects of magnetism in daily life. You can use it with confidence even in modern living environments where there are many electronic devices.
■ Back skeleton - mechanical beauty
On the back cover, a mark with a mountain range motif is printed. The back skeleton is placed in the center, allowing you to appreciate the beautiful movement of Cal.6R55.
The movement of the precisely assembled gears and rotors makes you feel the charm of mechanical watches to the fullest. When you take off your watch, you can turn it over and look at the movement, which is the real thrill of a mechanical watch.
■ High quality made in Japan
SBDC209 is a high quality watch made in Japan. This is a highly reliable piece packed with the technology and experience that Seiko has cultivated.
As a distribution limited model exclusively for core shops, it is available only through special sales channels. This is a special piece that inherits the DNA of an alpinist and has upgraded the performance to be suitable for Prospex.
■ Recommended for these people
- 登山やトレッキングが好きな方
- 機械式時計の魅力を味わいたい方
- アルピニストの伝統に惹かれる方
- Those who want a long power reserve that lasts for 3 days
- Those looking for a scratch-resistant watch with diamond shield processing
- Those who want to enjoy movement with a back skeleton
- 方位計機能が必要な方
- Those looking for a watch that is water resistant to 20 ATM
- Those looking for a high quality watch made in Japan
- Those who like classical design
- 流通限定モデルをお探しの方
- Those who want a watch that can be used both outdoors and in daily life
■ Buyer's comment
The moment I picked up this SBDC209, I felt the weight of alpinist history and the fusion of new technology. The traditional Alpinist logo on the classic black dial is really proud and cool. The approximately 72-hour power reserve is safe for weekend camping, and it's impressive that it still works properly even if you take it off on Friday and put it on on Monday. Thanks to the diamond shield treatment, it is scratch resistant and can be used for everyday use. The movement of the mechanical movement visible through the back skeleton of the case back is truly beautiful, and just looking at it is soothing. The weight of approximately 147g is comfortable, and you can feel it on your wrist. It has the special feel of being limited to distribution, making it a must-have for alpinist enthusiasts. by Fujimuro
■ Purchase at each mall
■ Related models (SEIKO PROSPEX)
■ Consult on LINE
