Product Description
Offered here is the Grand Seiko Heritage Collection SBGA413 / SBGA413G “Shunbun”, one of the most sought-after modern Grand Seiko references because it delivers the brand’s strengths the old-fashioned way: design discipline, obsessive finishing, and real technical substance (not marketing noise).
This model is a modern re-interpretation of the historic 62GS case architecture, recognized for its bezel-free construction and wide dial opening. The case is executed in High-Intensity Titanium with Grand Seiko’s signature mix of hairline brushing and distortion-free Zaratsu polishing, giving it that “looks expensive from across the room” clarity that photos never fully capture.
The star is the dial: a pale pink, textured surface inspired by hana-ikada the moment after the vernal equinox when cherry blossom petals drift across water. It reads silver in some lighting, blush in others, and always with depth.
Power is provided by Grand Seiko’s Spring Drive Caliber 9R65, delivering the trademark perfectly smooth seconds hand glide, ~72 hours of power reserve, and rated accuracy of ±1 second per day / ±15 seconds per month.
Condition Summary
Excellent overall condition with only minimal, superficial handling marks consistent with careful wear
Dial and crystal present cleanly with no distracting flaws
Bracelet and clasp present very well
Includes an additional Jean Rousseau green velvet crocodile strap (aftermarket; not Grand Seiko OEM) for a more formal look
| Brand | Grand Seiko |
|---|---|
| Model | Heritage Collection “Shunbun” (Vernal Equinox / Cherry Blossom) |
| Reference Number | SBGA413 / SBGA413G |
| Year Manufactured | 2025 (per warranty card date) |
| Country/Region of Manufacture | Japan |
| Condition | Excellent |
| Gender | Unisex |
| Age Group | Adult |
| Style | Luxury Dress / Everyday Sport |
| Display | Analog |
| Case Material | High-Intensity Titanium |
|---|---|
| Case Color | Titanium / Silver-Grey |
| Case Size | 40.0 mm |
| Case Thickness | 12.8 mm |
| Lug-to-Lug | 47.0 mm |
| Case Shape | Round (62GS-inspired, bezel-free profile) |
| Case Finish | Hairline brushed with Zaratsu-polished planes (distortion-free polish) |
| Bezel Type | Fixed / bezel-free 62GS architecture |
| Crystal | Box-shaped sapphire with anti-reflective coating on inner surface. |
| Caseback | See-through sapphire, screw caseback |
| Crown | Screw-down crown |
| Water Resistance | 10 bar / 100 m |
| Dial Color | Pale pink / cherry blossom tone |
|---|---|
| Dial Finish | Textured (hana-ikada inspiration) |
| Indices | Applied baton markers |
| Hands | Dauphine-style |
| Lume | None indicated |
| Features | Date at 3 o’clock; power reserve indicator |
| Movement | Grand Seiko Caliber 9R65 (Spring Drive) |
|---|---|
| Winding | Automatic with manual winding |
| Jewels | 30 |
| Power Reserve | Approx. 72 hours |
| Accuracy | ±15 seconds per month (±1 second per day) |
| Escapement Type | Spring Drive Tri-Synchro Regulator (glide wheel control) |
| Functions | Hours, minutes, seconds, date, power reserve indicator |
| Bracelet Material | High-Intensity Titanium |
|---|---|
| Band Width | 21 mm |
| Clasp | Three-fold clasp with push button release |
| Additional Strap | Jean Rousseau green velvet crocodile strap (aftermarket) |
| Magnetic Resistance | 4,800 A/m |
|---|---|
| Weight | 102 g |
| Included | Double box, travel pouch, manuals/booklets, hang tags, warranty card (Nov 2025), receipt, extra strap |
| Condition Type | Pre-Owned |
| Seller Warranty | Yes fully authenticated |
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Additional Details
