Grand Seiko
Heritage Collection Spring Drive 44GS Katana Forge SBGA493
Ref. SBGA493
A limited-edition stainless steel Spring Drive watch from Grand Seiko’s Heritage Collection, inspired by Japanese sword craftsmanship. The SBGA493 features a 40mm 44GS case with Zaratsu finishing, a red katana-inspired dial, and a hybrid Spring Drive movement (Caliber 9R65) combining mechanical torque with quartz-like precision. Part of a US-exclusive run of 500 pieces, it includes a stainless steel bracelet with a kimono fabric strap and a see-through caseback.
crystalDual-curved sapphire with anti-reflective coating
braceletStainless steel with three-fold clasp + kimono fabric strap with pin buckle
movement9R65, Spring Drive, Self-winding with Manual-winding, 72-hour power reserve, ±1 second/day accuracy, 30 jewels
functionsHours, minutes, seconds, date, power reserve indicator
lug width19.0mm
dial colorRed (katana-inspired)
case diameter40.0mm
case materialStainless Steel
water resistance10 bar
year2023
A registered Grand Seiko SBGA493 carries a permanent RGATT passport: origin, history and owners, verifiable by anyone, and a documented history makes a watch easier to sell.