At Watches & Wonders 2023, Grand Seiko unveiled an evolution of its 44GS design, the Hi-Beat 36000 and Hi-Beat 36000 GMT, with five models featuring the brand's latest alloy: Ever-Brilliant Steel. All watches feature Shizukuishi's iconic dial: Mount Iwate. Today, the brand releases a special edition exclusive to its online boutique – the Grand Seiko Heritage Collection Mechanical Hi-Beat 36000 Ref. SBGH345.