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Grand SeikoSBGA413 “Shunbun”—NATO Straps
Part of Grand Seiko’s iconic 24 Seasons (Sekki) collection, the SBGA413 "Shunbun" celebrates the arrival of spring as pale pink cherry blossom petals drift across river waters (Hana-Ikada).
Artem Straps
Premium
Verified 21mm FitBurgundy Nylon
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Top Compatible NATO Straps
Hand-verified for Grand Seiko SBGA413 "Shunbun" (21mm lug width, standard lugs).
STRAPSCO
Value
Red Bond Single Pass Seat Belt
Nylon
Single Pass
Bond
Verified 21mm Fit
~$23✦ 2+1 FREE
In StockSTRAPSCO
Value
Navy & Tan Woven Single Pass
Nylon
Single Pass
Navy
Verified 21mm Fit
~$25✦ 2+1 FREE
In StockSTRAPSCO
Value
Burgundy Woven Single Pass
Nylon
Single Pass
Burgundy
Verified 21mm Fit
~$25✦ 2+1 FREE
In StockSTRAPSCO
Value
Olive Bond Single Pass Seat Belt
Nylon
Single Pass
Bond
Verified 21mm Fit
~$23✦ 2+1 FREE
In Stock
STRAPSCO
Value
Navy & Green Woven Single Pass
Nylon
Single Pass
Navy
Verified 21mm Fit
~$25✦ 2+1 FREE
In Stock
Grand Seiko SBGA413 "Shunbun" NATO On-Wrist Gallery
Grand Seiko SBGA413 "Shunbun" NATO Strap Fitment Guide: Add military utility and heritage styling to the Grand Seiko SBGA413 "Shunbun" with robust 21mm ballistic nylon and seatbelt weave NATO straps. Designed for security, comfort, and effortless casual wear.
Lug Width & Architecture: The Grand Seiko SBGA413 "Shunbun" features a 21mm lug width. Every strap listed above is matched to ensure structural clearance, spring-bar alignment, and visual balance.