A special release from Seiko Astron to commemorate the 145th anniversary of its founding.SBXC186has appeared.
This is a limited edition model of the Nexter series equipped with GPS satellite radio solar, with a gorgeous black and gold design.
Limited to 1,450 pieces worldwide (including 600 pieces in Japan), this is a gem exclusively for the Seiko Global Brand Core Shop.
The transparent sapphire glass bezel and the gold color placed throughout express Seiko's 145 years of glorious history. Although it is made of pure titanium and has a lightweight design of approximately 110g, it has a super black diamond shield process that provides high scratch resistance.
A special piece that will brighten up your arm.
A luxurious black and gold design.
Beautiful shine with a sapphire glass bezel.
Transparent bezel display board.
Polished finish down to the finest detail.
■ Main features
- Seiko 145th anniversary limited edition model:Special edition limited to 1,450 pieces worldwide (including 600 pieces in Japan).
- GPS satellite radio solar:Display accurate time anywhere in the world.
- Black x gold design:A special coloring that symbolizes success and abundance.
- Pure titanium case:Super black diamond shield processing makes it scratch resistant.
- Sapphire glass bezel:A beautiful bezel that creates a sense of transparency and three-dimensionality.
- Gold accents:Gold on the indexes, hands, and bezel display board.
- Special 1, 4, 5 notation:"1", "4" and "5" in the time zone display are highlighted in gold.
- Chronograph function:Equipped with 1/20 second measurement and 12 hour meter.
- World time function:Compatible with 38 time zones.
- Dual time display:Two times can be displayed simultaneously.
- Perpetual calendar:Valid until February 28, 2100.
- Power reserve display:Check charging status at a glance.
- Drive for about 6 months:Approximately 6 months when fully charged, approximately 2 years when power save.
- 10 ATM waterproof:Reinforced waterproof for daily life.
- Dual curve sapphire glass:Adopts super clear coating.
- Screw back:``LIMITED EDITION'' and serial number are written on the back cover.
- Nickel allergy resistance:Skin-friendly material.
- Smart adjuster mechanism:Size can be easily adjusted without tools.
■Specs
| brand | SEIKO |
|---|---|
| series | ASTRON NEXTER |
| Product number | SBXC186 |
| Drive method | GPS satellite radio solar (Caliber 5X83) |
| precision | Average monthly difference when not receiving ±15 seconds |
| Driving period | Approximately 6 months when fully charged, approximately 2 years when power saved |
| Koku count | 14 stones |
| case | Pure titanium (super black diamond shield) |
| bezel | Pure titanium (super black diamond shield) (display plate: sapphire glass) |
| band | Pure titanium (super black diamond shield) (C-ring type) |
| glass | Dual curve sapphire glass (super clear coating) |
| Dial color | black |
| belt color | black/gold |
| case size | Approximately 50×44×14.5mm |
| Belt width (maximum) | Approximately 14mm |
| weight | Approximately 110g |
| belt around arm | Maximum approximately 19.5cm |
| waterproof | Reinforced waterproof for daily life (10 atm) |
| Other functions | Overcharge prevention function/power save function/stopwatch function (1/20 second measurement) 12 hour meter) / Perpetual calendar function (until February 28, 2100) / World time function (38 time zones) / Dual time display function / Day of the week display function / Power reserve display function / Time transfer function / Time zone correction function using satellite radio reception Persmart sensor function / Captured satellite number display function / Reception result display function / DST (summer time) function / Reception off function (airplane mode) / Hand position automatic correction function / Anti-magnetic / Anti-nickel allergy / Screw back / Nakadome with smart adjuster mechanism / Back lid "LIMITED" EDITION” notation/back lid serial number included |
| accessories | Warranty card/special box (instruction manual is electronic) |
| Release date | February 2026 |
| price | Manufacturer's suggested retail price: 374,000 yen (tax included) |
| limited quantity | Limited to 1,450 pieces worldwide (including 600 pieces in Japan) |
| Sales store | Seiko global brand core shop exclusive model |
| Guarantee | Manufacturer's three year warranty *Nanapure is currently running a 7-year warranty campaign. |
■ Special design celebrating Seiko's 145th anniversary
In 2026, Seiko will celebrate its 145th anniversary. SBXC186 is a special limited edition model created to celebrate this memorable milestone. Since its founding in 1881, Seiko has continued to innovate, adhering to founder Kintaro Hattori's credo of "always staying one step ahead of the times."
This model uses warm gold as an accent color, which symbolizes success and abundance. The titanium case and bracelet are polished to a beautiful shine, and the black color accentuates the gold color scattered throughout.
The transparent sapphire glass bezel, indexes, hour, minute and second hands, and other detailed gold placements express Seiko's glorious history and expectations for the future.
■ Transparent sapphire glass bezel
The biggest feature of SBXC186 is its transparent sapphire glass bezel. The display board is also decorated with gold color, creating a sense of depth and three-dimensionality. The beautiful bezel, which changes its appearance depending on the angle of light, captivates the viewer.
Among the time zone indications on the dial ring, "1," "4," and "5" are decorated with gold in honor of Seiko's 145th anniversary. This subtle detail creates a special finish unique to this limited edition model.
■ Pure titanium case with super black diamond shield processing
The case and bracelet are made of pure titanium. Super black diamond shield processing achieves surface hardness approximately 5 times that of stainless steel. It is resistant to scratches and abrasion from daily use, and maintains its beautiful black shine for a long time.
Titanium is a lightweight yet strong material that is gentle on the skin. It is nickel allergy resistant, so even people with metal allergies can use it with confidence. It's lightweight at about 110g, so you won't get tired even when wearing it for long periods of time.
■ Accurate anywhere in the world with GPS satellite radio solar
The GPS satellite radio solar system with caliber 5X83 displays accurate time no matter where you are in the world. Receives signals from GPS satellites and automatically corrects time zone. When traveling overseas, you can instantly see the accurate local time.
The super smart sensor function detects arm movements and automatically adjusts the time. It boasts high accuracy with an average monthly difference of ±15 seconds even when not receiving data, and can continue to operate for about 6 months when fully charged with the solar charging system, and for about 2 years when in power save mode.
■ Chronograph function allows for a variety of measurements
Equipped with a stopwatch function that can measure up to 12 hours in 1/20 second increments. Convenient for measuring time in sports and business situations. The highly visible dial design allows you to read measurement values instantly.
■ World time function supports 38 time zones around the world
Equipped with a world time function that supports 38 time zones around the world. The dual time display function allows you to display two times at the same time, making it ideal for communicating with overseas business partners and for businessmen traveling between multiple countries.
It also supports the DST (daylight saving time) function and automatically adjusts even in areas with time differences. It also has a reception off function (airplane mode), so you can wear it with confidence even on airplanes.
■ Compatible with perpetual calendar until 2100
Equipped with a perpetual calendar function that supports until February 28, 2100. Automatically detects leap years, so you don't have to worry about adjusting the date. It also has a day of the week display function, making it convenient for managing schedules in business settings.
■ Check charging status with power reserve display
Power reserve display allows you to check charging status at a glance. You can use it with confidence without worrying about the remaining battery level. Equipped with overcharging prevention function and power save function, it realizes efficient energy management.
■ Dual curved sapphire glass is scratch resistant
The windshield uses dual curve sapphire glass. It combines high transparency and scratch-resistant hardness. It also features a super clear coating that suppresses reflection and increases visibility.
■ 10 ATM water resistant, safe for daily use
Reinforced waterproofing for daily life (10 ATM) allows you to use it with confidence not only when washing your hands or splashing water from rain, but also when working with water or doing marine sports. It can be used in a wide range of situations, from business to casual to outdoor activities.
■ Easy size adjustment with smart adjuster mechanism
The clasp is equipped with a smart adjuster mechanism that allows for easy size adjustment without the need for tools. It's convenient because you can quickly respond to changes in your arm circumference due to the season or your physical condition.
■ “LIMITED EDITION” marking as a limited edition model
The back cover is engraved with the words "LIMITED EDITION" and the serial number. Its rarity, limited to 1,450 pieces worldwide (including 600 pieces in Japan), further enhances the joy of owning it. The screw back design ensures waterproof performance.
■ Comfortable wearing feeling with C-ring type bracelet
The bracelet uses a C-ring type and fits gently on your wrist. Made of pure titanium, lightweight and durable. The two-tone color of black and gold gives a sophisticated impression.
■ Other useful functions
The time transfer function makes it easy to switch between home time and local time. You can check the GPS reception status with the captured satellite number display function and reception result display function.
The automatic needle position correction function automatically corrects any misalignment caused by impact, etc. It also has anti-magnetic properties, reducing the effects of magnetism in daily life.
■ Recommended for these people
- Those who want a special watch with a sense of Seiko's history
- Those who want to collect limited edition models
- Those who like the luxurious design of black and gold
- Those looking for a high-performance watch equipped with GPS satellite radio solar
- Businessman who frequently travels and does overseas business trips
- Those looking for a lightweight titanium watch
- Those who want a scratch-resistant watch
- Those who need a multifunctional chronograph
- Those looking for an anniversary or special gift
- seiko astron fan
- Those looking for high quality watches made in Japan
- Those who are attracted to core shop limited models
■ Buyer's comment
The moment I first held the SBXC186, I was captivated by the black and gold color scheme. The transparency of the sapphire glass bezel and the gold accents scattered throughout are truly beautiful. It's made of pure titanium and weighs only 110g, but thanks to the Super Black Diamond Shield treatment, it's both luxurious and durable. Not only is the GPS satellite radio solar accurate, but the chronograph and world time functions are also extremely practical. The premium feel of the limited edition of 1,450 pieces worldwide is also appealing, and I feel that this is a special piece filled with Seiko's 145 years of history and hopes for the future. When you wear this watch on your wrist, you will once again experience the joy of keeping time. by Fujimuro
■ Purchase at each mall
■ Related models (Seiko Astron)
■ Consult on LINE
