WRIST FIT REPORT / ROUND MULTI-FACET
Grand Seiko
Shunbun
A 47mm span and lightweight titanium construction keep the 40mm case controlled despite the many reflective surfaces.
Seven wrists.
One footprint.
The model estimates flat wrist width at 30% of circumference, then compares the measured span. Use the spectrum to identify where a try-on becomes essential.
| WRIST | EST. WIDTH | COVERAGE | MARGIN | READ | INDEX |
|---|---|---|---|---|---|
| 14cm5.51in | 42mm | 112% | -5mm | LIKELY OVERHANG | 35/100 |
| 15cm5.91in | 45mm | 104% | -2mm | LIKELY OVERHANG | 50/100 |
| 16cm6.3in | 48mm | 98% | +1mm | BOLD EDGE | 85/100 |
| 16.5cm6.5in | 49.5mm | 95% | +2.5mm | BALANCED | 90/100 |
| 17cm6.69in | 51mm | 92% | +4mm | BALANCED | 95/100 |
| 18cm7.09in | 54mm | 87% | +7mm | BALANCED | 97/100 |
| 19cm7.48in | 57mm | 82% | +10mm | BALANCED | 89/100 |
A 47mm span and lightweight titanium construction keep the 40mm case controlled despite the many reflective surfaces.
Low weight does not shrink the dial or polished facets. Inspect edge clearance and bracelet drop on smaller wrists.
The footprint works.
Now verify the watch.
Fit is one gate. Price, condition, service history and seller quality still decide whether the individual example deserves your capital.
Keep the fit.
Watch the market.
Get the Tuesday buyer brief, the 10-point checklist and new research for Grand Seiko Shunbun SBGA413.
Before the
try-on.
Will the Grand Seiko Shunbun SBGA413 fit a 6.5 inch wrist?+
At 16.5cm / 6.5in, the directional model reads balanced with 95% lug-span coverage. Wrist shape and articulation still require a try-on.
What are the Grand Seiko Shunbun SBGA413 dimensions?+
The fit model uses 40mm case width, 47mm measured span and 12.8mm thickness.
What matters most for this watch on wrist?+
Low weight does not shrink the dial or polished facets. Inspect edge clearance and bracelet drop on smaller wrists.
Is this fit result a guarantee?+
No. It is directional geometry based on an estimated flat wrist width. Try the watch on or compare a clear top-down wrist photo before buying.