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The Grand Seiko SBGA407 is the light-blue-dial Spring Drive watch Grand Seiko calls the “Skyflake.” It shares a snow-inspired design idea with the white-dial SBGA211, often called the Snowflake, but it is a distinct model: the SBGA407 has a stainless-steel case and navy crocodile strap. Its key specifications include a 40.2 mm case, automatic Caliber 9R65, an approximately 72-hour power reserve and manufacturer-rated accuracy of ±15 seconds per month.
What is the Grand Seiko SBGA407?
Grand Seiko places reference SBGA407 in its Elegance Collection and describes it as the Spring Drive “Skyflake.” The official product page pairs a light-blue dial with a softly rounded stainless-steel case and navy crocodile strap. The dial’s winter-snow texture is intended to evoke snow in the Hotaka Mountains reflecting a clear blue sky, according to the brand’s design description. Grand Seiko’s SBGA407 product page and its SBGA407 design page describe the dial and finishing.
The model is not simply a blue version of the white Snowflake SBGA211. The Skyflake has its own reference, case material and strap configuration; the two watches share a movement and a snow-inspired dial concept, not an identical specification.
SBGA407 specifications
These are figures published by Grand Seiko for the SBGA407, not independent measurements of a particular watch.
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- Calendar-linked time difference adjustment function
- Movement Caliber 9S86,
- Dual-curved sapphire crystal
| Specification | Grand Seiko’s published figure |
|---|---|
| Collection and reference | Elegance Collection; SBGA407 |
| Movement | Caliber 9R65 automatic Spring Drive; manual winding also specified |
| Power reserve | Approximately 72 hours (three days); dial indicator |
| Accuracy | ±15 seconds per month (±1 second per day) |
| Case material and dimensions | Stainless steel; 40.2 mm diameter, 48.5 mm lug-to-lug, 12.8 mm thick |
| Crystal | Box-shaped sapphire, with anti-reflective coating on the inner surface |
| Strap and clasp | Navy crocodile leather; 19 mm band width; folding clasp with push-button release |
| Water resistance | 10 bar |
| Magnetic resistance | 4,800 A/m |
| Other features | 30 jewels; see-through case back secured with six screws |
All figures in the table come from Grand Seiko’s published SBGA407 specifications.
How accurate is the SBGA407?
Grand Seiko lists the Caliber 9R65’s accuracy as ±15 seconds per month, or ±1 second per day. This is the manufacturer’s published specification; it is not a timing result for every individual watch, a guarantee of its present condition, or evidence of its long-term drift. Actual condition and performance can depend on the specific watch.
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- See-through case back
- Date display
- Screw-down crown
- 40mm Diameter
- Weight 178.0 g
How Spring Drive works in this watch
Caliber 9R65 combines a mainspring power source with a quartz oscillator and integrated circuit to regulate time. Instead of the familiar stepped motion of a conventional ticking seconds hand, the SBGA407’s seconds hand glides continuously. Grand Seiko’s Spring Drive technical overview says a magnetic brake regulates the movement 256 times per second. The caliber is automatic and also supports manual winding.
How long is the SBGA407 power reserve?
Grand Seiko specifies an approximate 72-hour (three-day) reserve for the Caliber 9R65. The dial’s power-reserve indicator shows the remaining reserve, so the wearer can see how much running time is left. Grand Seiko describes it as a maximum power reserve of 72 hours in its product copy.
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- BLUE DIAL: this handsome men’s watch features a striking deep blue dial with luminous dial indicator hands and markers and date calendar to keep you organized
- BLUE & BLACK BEZEL: with a 24-hour bezel and easy-to-read fourth hand, this GMT watch helps you keep time as you travel
- DURABLE UTILITY: these versatile men’s wrist watches feature a 42.5mm stainless steel watch case and bracelet, for a classic, timeless look.
- WATER-RESISTANT: this rugged sports watch is water-resistant up to 100 meters
- 4R34 CALIBER: equipped with the reliable 4R34 caliber, these automatic watches for men ensure the most accurate in self winding timekeeping, with 41 hours of reserve power and manual winding option
SBGA407 Skyflake vs. SBGA211 Snowflake
The SBGA211 is the white-dial Snowflake; the SBGA407 is the light-blue Skyflake. Grand Seiko lists the SBGA407 at 40.2 mm in stainless steel on a crocodile strap, while its SBGA211 page describes a 41 mm high-intensity titanium case and titanium bracelet. Both use Caliber 9R65. The SBGA211 also has a blue tempered seconds hand, according to Grand Seiko’s technical overview.
| SBGA407 Skyflake | SBGA211 Snowflake | |
|---|---|---|
| Dial | Light blue | White |
| Case | Stainless steel; 40.2 mm diameter | High-intensity titanium; 41 mm diameter |
| Wearing configuration | Navy crocodile strap | Titanium bracelet |
| Movement | Caliber 9R65 Spring Drive | Caliber 9R65 Spring Drive |
For a choice between them, consider whether you prefer the light-blue or white dial, a strap or bracelet, and stainless steel or high-intensity titanium. Diameter is not the whole fit story: the SBGA407’s published lug-to-lug length and thickness are 48.5 mm and 12.8 mm. No comparative fit test establishes that either model wears more comfortably for every wrist.
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- RACING-INSPIRED DIAL: Silver and orange striped dial with luminous hands and a blue seconds hand ensures clear readability and bold style in watches for men.
- AUTOMATIC MOVEMENT: Powered by Caliber 4R36 with manual winding capability and 41-hour power reserve, a standout in men’s wrist watches.
- STAINLESS STEEL CASE: Durable 42.5mm stainless steel case with screwdown see-through caseback showcases classic mechanical precision.
- WATER RESISTANT: 100M (10 bar) water resistance makes this men’s watch reliable for everyday wear and active lifestyles.
- UNIDIRECTIONAL BEZEL: Light silver rotating bezel paired with striped nylon strap for comfort, secure fit, and sporty aesthetic among luxury watches for men.
See Grand Seiko’s SBGA407 product information and Spring Drive overview for the referenced model details.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Design details and release date
Grand Seiko’s design page highlights the box-shaped sapphire crystal, Zaratsu-polished lugs and blue steel seconds hand. Those descriptions are the manufacturer’s account of the watch’s design and finishing. The same page states that the SBGA407 was available in June 2019; that date does not establish current stock or the release date in every market.
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- CLASSIC FIELD WATCH DESIGN: Clean white dial with bold Arabic numerals and a compass bezel for excellent readability and everyday outdoor style.
- AUTOMATIC MECHANICAL MOVEMENT: Reliable Seiko automatic movement with a 41-hour power reserve delivers smooth, battery-free performance.
- DURABLE STAINLESS STEEL BUILD: Constructed with a stainless steel case and solid link bracelet, featuring a Hardlex crystal and see-through case back.
- DAY-DATE DISPLAY: Easy-to-read day and date window with luminous hands and markers for quick timekeeping in various lighting conditions.
- EVERYDAY COMFORT: Designed for work, travel, hiking, and casual wear with 100M water resistance and a secure deployment clasp.
Price and availability
Price and stock depend on region and can change. Grand Seiko’s Benelux product page displayed EUR 6,500 and directed customers to its boutiques and salons when reviewed; that regional listing should not be treated as a universal current price or confirmation of availability in another country. Check Grand Seiko or an authorized seller in your market for current terms.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
