Grand Seiko Heritage SBGW323
Discover the refined elegance of the Grand Seiko Heritage SBGW323, a timepiece that captures the purest expression of the Grand Seiko Style. Inspired by the iconic 44GS design from 1967, the SBGW323 blends traditional craftsmanship with contemporary finishing to deliver a timeless, minimalist dress watch.
The watch features the distinctive Mt. Iwate pattern dial, rendered in a soft violet tone inspired by the “kiri” (Paulownia) flower — the symbol of Iwate Prefecture where this masterpiece is crafted. Its delicate texture plays beautifully with light, creating depth and sophistication on the wrist.
At its heart is the manual-winding Caliber 9S64, known for reliability and precision. With a robust 72-hour power reserve, it brings together classic hand-wound experience with modern accuracy. Sized at 36.5 mm, the watch offers perfect vintage proportions, enhanced by the sharp Zaratsu-polished surfaces that define Grand Seiko’s iconic aesthetic.
Elegant, compact, and exquisitely finished, the SBGW323 is an exceptional choice for collectors seeking a refined daily dress watch — understated yet unmistakably Grand Seiko.
Model: Grand Seiko Heritage Collection – SBGW323
Movement: Manual-winding, Caliber 9S64
Power Reserve: Approx. 72 hours
Accuracy: +5 to –3 seconds per day
Vibrations: 28,800 vph (8 beats per second)
Jewels: 24 jewels
Case Material: Stainless steel
Case Diameter: 36.5 mm
Thickness: 11.6 mm
Lug-to-lug: 42.7 mm
Crystal: Box-shaped sapphire crystal with anti-reflective coating
Case Back: Sapphire exhibition case back
Dial: Mt. Iwate pattern, Violet (“Kiri Flower” inspired)
Hands & Indexes: Zaratsu-polished, multi-faceted
Water Resistance: 10 bar (100 meters)
Magnetic Resistance: 4,800 A/m
Strap: Stainless steel bracelet
Clasp: Three-fold clasp with push-button release
Manufactured in: Grand Seiko Studio Shizukuishi, Japan
