
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).

Hand-verified for Grand Seiko SBGA413 "Shunbun" (21mm lug width, standard lugs).





Grand Seiko SBGA413 "Shunbun" Rally Strap Fitment Guide: Rooted in 1960s motorsport culture, these perforated 21mm rally straps give the Grand Seiko SBGA413 "Shunbun" instant racing pedigree, exceptional breathability, and aggressive wrist presence.
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.